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Resumen: Introducción: las fracturas del radio distal son las más comunes en extremidades superiores. Estandarizar las mediciones radiográficas para su abordaje quirúrgico es importante. Este estudio midió la reproducibilidad intra/interobservador de parámetros radiográficos asociados al éxito quirúrgico en estas fracturas. Material y métodos: diseño transversal retrospectivo con datos secundarios de expedientes clínicos. Se evaluaron radiografías de 112 fracturas en planos posteroanterior y lateral por dos traumatólogos estandarizados en toma de mediciones para calcular cinco parámetros indicativos de éxito postquirúrgico: altura radial, inclinación radial, inclinación volar, varianza cubital y escalón articular. La reproducibilidad de distancias y ángulos se evaluó con el método de Bland-Altman calculando: diferencia media entre mediciones, rango a ± 2 DE y proporción de mediciones fuera de ± 2 DE. El éxito postquirúrgico se comparó en pacientes con/sin obesidad según la media de las dos mediciones de cada evaluador. Resultados: el evaluador 1 tuvo la mayor diferencia intraobservador en altura radial (0.16 mm) y la mayor proporción fuera de ± 2 DE en varianza cubital (8.1%); el evaluador 2 tuvo la mayor diferencia en inclinación volar (1.92o) y la mayor proporción en inclinación radial (10.7%). La mayor diferencia interobservador fue en varianza cubital (1.02 mm) y la mayor proporción fuera de ± 2 DE en altura radial (5.4%). La inclinación radial tuvo la mayor diferencia (1.41o) con 4.5% de mediciones fuera de ± 2 DE. La varianza cubital y la inclinación volar tuvieron la mayor diferencia de éxito postquirúrgico entre evaluadores, sobre todo en pacientes con obesidad. Conclusión: mejorar la calidad radiográfica y estandarizar las mediciones resulta en indicadores más reproducibles.
Abstract: Introduction: distal radius fractures are the most common in upper extremities. Therefore, it is important to standardize radiographic measures for their surgical approach. This study assessed the intra/interobserver reproducibility of radiographic parameters associated with surgical success of distal radius fractures. Material and methods: retrospective cross-sectional design of secondary data extracted from clinical records. Posteroanterior and lateral X-rays of 112 distal radius fractures were assessed by two trauma specialists standardized in the measurements required to compute five parameters indicative of postoperative success: radial height, radial inclination, volar tilt, ulnar variance, and articular stepoff. The reproducibility of distances and angles was evaluated using the Bland-Altman method, calculating the mean of the difference between measurements, the range at ± 2 SD, and the proportion of measurements outside ± 2 SD. Postoperative success was also compared between patients with and without obesity according to the mean of the two measures made by each evaluator. Results: evaluator 1 had the largest intra-observer difference in radial height (0.16 mm) and the largest proportion outside ± 2 SD in ulnar variance (8.1%); evaluator 2 had the largest difference in volar tilt (1.92o) and the highest proportion in radial inclination (10.7%). The largest inter-observer difference was for ulnar variance (1.02 mm) and the largest proportion outside ± 2 SD. for radial height (5.4%). Radial tilt had the largest difference (1.41o) with 4.5% of measurements outside ± 2 SD. Ulnar variance and volar tilt had the largest difference in postoperative success between evaluators, especially in patients with obesity. Conclusion: improving the radiographic quality and standardizing the measurements results in more reproducible indicators.
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INTRODUCTION: distal radius fractures are the most common in upper extremities. Therefore, it is important to standardize radiographic measures for their surgical approach. This study assessed the intra/interobserver reproducibility of radiographic parameters associated with surgical success of distal radius fractures. MATERIAL AND METHODS: retrospective cross-sectional design of secondary data extracted from clinical records. Posteroanterior and lateral X-rays of 112 distal radius fractures were assessed by two trauma specialists standardized in the measurements required to compute five parameters indicative of postoperative success: radial height, radial inclination, volar tilt, ulnar variance, and articular stepoff. The reproducibility of distances and angles was evaluated using the Bland-Altman method, calculating the mean of the difference between measurements, the range at ± 2 SD, and the proportion of measurements outside ± 2 SD. Postoperative success was also compared between patients with and without obesity according to the mean of the two measures made by each evaluator. RESULTS: evaluator 1 had the largest intra-observer difference in radial height (0.16 mm) and the largest proportion outside ± 2 SD in ulnar variance (8.1%); evaluator 2 had the largest difference in volar tilt (1.92o) and the highest proportion in radial inclination (10.7%). The largest inter-observer difference was for ulnar variance (1.02 mm) and the largest proportion outside ± 2 SD. for radial height (5.4%). Radial tilt had the largest difference (1.41o) with 4.5% of measurements outside ± 2 SD. Ulnar variance and volar tilt had the largest difference in postoperative success between evaluators, especially in patients with obesity. CONCLUSION: improving the radiographic quality and standardizing the measurements results in more reproducible indicators.
INTRODUCCIÓN: las fracturas del radio distal son las más comunes en extremidades superiores. Estandarizar las mediciones radiográficas para su abordaje quirúrgico es importante. Este estudio midió la reproducibilidad intra/interobservador de parámetros radiográficos asociados al éxito quirúrgico en estas fracturas. MATERIAL Y MÉTODOS: diseño transversal retrospectivo con datos secundarios de expedientes clínicos. Se evaluaron radiografías de 112 fracturas en planos posteroanterior y lateral por dos traumatólogos estandarizados en toma de mediciones para calcular cinco parámetros indicativos de éxito postquirúrgico: altura radial, inclinación radial, inclinación volar, varianza cubital y escalón articular. La reproducibilidad de distancias y ángulos se evaluó con el método de Bland-Altman calculando: diferencia media entre mediciones, rango a ± 2 DE y proporción de mediciones fuera de ± 2 DE. El éxito postquirúrgico se comparó en pacientes con/sin obesidad según la media de las dos mediciones de cada evaluador. RESULTADOS: el evaluador 1 tuvo la mayor diferencia intraobservador en altura radial (0.16 mm) y la mayor proporción fuera de ± 2 DE en varianza cubital (8.1%); el evaluador 2 tuvo la mayor diferencia en inclinación volar (1.92o) y la mayor proporción en inclinación radial (10.7%). La mayor diferencia interobservador fue en varianza cubital (1.02 mm) y la mayor proporción fuera de ± 2 DE en altura radial (5.4%). La inclinación radial tuvo la mayor diferencia (1.41o) con 4.5% de mediciones fuera de ± 2 DE. La varianza cubital y la inclinación volar tuvieron la mayor diferencia de éxito postquirúrgico entre evaluadores, sobre todo en pacientes con obesidad. CONCLUSIÓN: mejorar la calidad radiográfica y estandarizar las mediciones resulta en indicadores más reproducibles.
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Fraturas do Rádio , Fraturas do Punho , Humanos , Estudos Retrospectivos , Reprodutibilidade dos Testes , Estudos Transversais , Fraturas do Rádio/diagnóstico por imagem , Fraturas do Rádio/cirurgia , Rádio (Anatomia) , Fixação Interna de Fraturas/métodos , Placas Ósseas , Amplitude de Movimento Articular , Resultado do TratamentoRESUMO
The Sustainable Development Goals (SDGs) encourage nations to substantially increase food production to achieve zero hunger (SDG 2) while preserving life on land (SDG 15). A key question is how to reconcile these potentially competing goals spatially. We use integer linear programming to develop an 'integrated land use planning framework' that identifies the optimal allocation of 17 crops under different hypothetical conservation targets while meeting agricultural demands by 2030. Intensifying existing cropland to maximum yield before allocating new cropland would reduce land requirement by 43% versus cropland expansion without intensification. Even with yield gap closure, tropical and sub-tropical crops still require expansion, primarily allocated to Venezuela, eastern Brazil, Congo Basin, Myanmar and Indonesia. Enforcement of protected areas, via avoiding conversion in 75% of Key Biodiversity Areas and 65% of intact areas, is vital to attain biodiversity targets but bears large opportunity costs, with agricultural rents dropping from $4.1 to $2.8 trillion. Although nationally constrained forest conservation efforts would earn 9% less agricultural rents compared to globally coordinated conservation solutions, they were also able to reduce intact habitat and forest loss (43% and 35% reduction). Our results demonstrate that careful choice of the allocation of future cropland expansion, could dramatically reduce-but not eliminate-the tradeoffs between the SDGs for food production and land biodiversity conservation.
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Conservação dos Recursos Naturais , Desenvolvimento Sustentável , Agricultura , Biodiversidade , Brasil , Objetivos , Fome , Indonésia , VenezuelaRESUMO
BACKGROUND: Flow cytometry (FC) is a valuable tool for the diagnosis of myelodysplastic syndromes (MDS). We present results of a survey carried out to evaluate FC current practice for MDS diagnosis in Latin America (LA), focusing on markers used and characteristics of the clinical diagnostic report. Compliance to IMDSflow recommendations was also evaluated. These practices were then compared with those used in other countries. METHODS: An online survey was sent through the Grupo Latino-Americano de Mielodisplasia to LA cytometrists and other international scientific societies. RESULTS: 91 responses from 15 LA countries were received. The median of the number of markers used was 20 ± 4.5, but only 8.1% of participants adopted the complete panel proposed by the International/European LeukemiaNet Working Group (IMDSflow). We received 140 eligible answers from regions other than LA (66 Europe, 59 USA-Canada, 8 Oceania, 6 Asia and 1 Africa). LA utilized more markers for MDS diagnosis than USA/Canada (p = 0.006), but similar to Europe. The use of MDS scoring systems differed among regions: 10.3% in LA, 0% USA/Canada and 25.7% Europe reported the "Ogata score". Finally, 52.0% of all participants included a general interpretation statement in the final report about the consistency of the FC results with MDS diagnosis, with no statistical differences between regions. CONCLUSIONS: This survey shows a low compliance with the IMDSflow recommendations and a scarce use of the scoring systems proposed in the literature. However, the number of surface markers used is high. We will work to develop a FC consensus for MDS diagnosis adapted to the clinical practice requirements in LA.
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Citometria de Fluxo , Síndromes Mielodisplásicas/diagnóstico , Padrões de Prática Médica/estatística & dados numéricos , África/epidemiologia , Ásia/epidemiologia , Biomarcadores/análise , Biomarcadores/sangue , Canadá/epidemiologia , Europa (Continente)/epidemiologia , Geografia , Humanos , Imunofenotipagem/métodos , América Latina/epidemiologia , Síndromes Mielodisplásicas/sangue , Síndromes Mielodisplásicas/epidemiologia , Oceania/epidemiologia , Inquéritos e Questionários , Estados Unidos/epidemiologiaRESUMO
Isospora bioccai (Cringoli and Quesada 1991) (Protozoa, Apicomplexa, Eimeriidae) is reported and described from captive canaries Serinus canaria forma domestica (Linnaeus 1758) in Mexico. The oöcysts are subspherical, 25.5â¯×â¯23.5⯵m, with smooth, bilayered wall, â¼1.3⯵m thick. Micropyle absent, oöcyst residuum absent, and polar granule present, 4-8 rice-grain-shaped. Sporocysts are ovoidal, 16.7â¯×â¯10.5⯵m. Stieda body knob-like and substieda body trapezoidal of irregular base. Sporocyst residuum is composed of granules of different sizes. Sporozoites are vermiform with one refractile body and a nucleus. Gamogony was seen in the duodenum. In addition to new locality, this is the first description of I. bioccai from S. canaria.
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A case study of a 41 years old woman with cyclic hypercortisolism is explained. AT the beginning, its manegment was shrinking the tumor, however afterward she needs medical treatment during cycles. The fluctuating clinical and discrepant bioquemical findings make it hard to diagnose. A review of this rare disorder is explained.
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Humanos , Adulto , Neoplasias Hipofisárias/complicações , Adenoma/complicações , Síndrome de Cushing/diagnóstico , Síndrome de Cushing/etiologia , Neoplasias Hipofisárias/diagnóstico , Fatores de Tempo , Adenoma/diagnóstico , Hiperfunção Adrenocortical/diagnóstico , Hiperfunção Adrenocortical/etiologiaRESUMO
Identifying the global hotspots of forestry driven species, ecosystem services losses and informing the consuming nations of their environmental footprint domestically and abroad is essential to design demand side interventions and induce sustainable production methods. Here we first use countryside species area relationship model to project species extinctions of four vertebrate taxa (mammals, birds, amphibians and reptiles) due to forest land use in 174 countries. We combine the projected extinctions with a global database on the monetary value of ecosystem services provided by different biomes and with bilateral trade data of wood products to calculate species extinctions and ecosystem services losses inflicted by national wood consumption and international wood trade. Results show that globally a total of 485 species are projected to go extinct due to current forest land use. About 32% of this projected loss can be attributed to land use devoted for export production. However, under the counterfactual scenario with the same consumption levels but no international trade of wood products, an additional 334 species are projected to go extinct. Globally, we find that losses of ecosystem services worth $1.5trillion/year are embodied in the timber trade. Compared to high-income nations, tropical countries such as Philippines, Nicaragua, Sri Lanka, Gambia and Bolivia presented the highest net ecosystem services losses (>3000US$/ha/year) that could not be compensated through current land rents, indicating underpriced exports. Small tropical countries also gained much lower rents per species extinction suffered. These results can help internalize these costs into the global trade through financial compensation mechanisms such as REDD+ or through price premiums on wood sourced from these countries. Overall the results can provide valuable insights for devising national strategies to meet several of the global Aichi 2020 biodiversity targets and can also be useful for life cycle assessment and product labelling schemes.
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Biodiversidade , Comércio , Conservação dos Recursos Naturais , Florestas , Madeira , Animais , Bolívia , Gâmbia , Nicarágua , Filipinas , Sri LankaRESUMO
Locomotion recovery after a spinal cord injury (SCI) includes axon regeneration, myelin preservation and increased plasticity in propriospinal and descending spinal circuitries. The combined effects of tamoxifen and exercise after a SCI were analyzed in this study to determine whether the combination of both treatments induces the best outcome in locomotion recovery. In this study, the penetrating injury was provoked by a sharp projectile that penetrates through right dorsal and ventral portions of the T13-L1 spinal segments, affecting propriospinal and descending/ascending tracts. Intraperitoneal application of Tamoxifen and a treadmill exercise protocol, as rehabilitation therapies, separately or combined, were used. To evaluate the functional recovery, angular patterns of the hip, knee and ankle joints as well as the leg pendulum-like movement (PLM) were measured during the unrestricted gait of treated and untreated (UT) animals, previously and after the traumatic injury (15 and 30days post-injury (dpi)). A pattern (curve) comparison analysis was made by using a locally designed Matlab script that determines the Frechet dissimilarity. The SCI magnitude was assessed by qualitative and quantitative histological analysis of the injury site 30days after SCI. Our results showed that all treated groups had an improvement in hindlimbs kinematics compared to the UT group, which showed a poor gait locomotion recovery throughout the rehabilitation period. The group with the combined treatment (tamoxifen+exercise (TE)) presented the best outcome. In conclusion, tamoxifen and treadmill exercise treatments are complementary therapies for the functional recovery of gait locomotion in hemi-spinalized rats.
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Terapia por Exercício , Fármacos Neuroprotetores/farmacologia , Traumatismos da Medula Espinal/tratamento farmacológico , Traumatismos da Medula Espinal/reabilitação , Tamoxifeno/farmacologia , Animais , Fenômenos Biomecânicos , Modelos Animais de Doenças , Feminino , Membro Posterior/efeitos dos fármacos , Membro Posterior/fisiopatologia , Locomoção/efeitos dos fármacos , Locomoção/fisiologia , Vértebras Lombares , Reabilitação Neurológica , Ratos Sprague-Dawley , Recuperação de Função Fisiológica/efeitos dos fármacos , Recuperação de Função Fisiológica/fisiologia , Medula Espinal/efeitos dos fármacos , Medula Espinal/patologia , Medula Espinal/fisiopatologia , Traumatismos da Medula Espinal/patologia , Traumatismos da Medula Espinal/fisiopatologia , Vértebras TorácicasRESUMO
El absceso tubo ovárico (ATO) es considerado una complicación grave de un proceso inflamatorio pelviano, con predominio de microorganismos polimicrobianos en mujeres sexualmente activas. Este diagnóstico raramente es sospechado en mujeres púberes sin actividad sexual. Caso clínico: Adolescente de 11años sin actividad sexual con antecedente de seno urogenital operado. Consultó por un cuadro febril y dolor abdominal de difícil manejo que resultó ser un ATO en una malformación mulleriana no diagnosticada previamente. Conclusión: En todas las adolescentes sin actividad sexual con diagnóstico de ATO, debe sospecharse una malformación mulleriana en el diagnóstico diferencial...
Tubo-ovarian abscess (TAO) is considered a serious complication of a pelvic inflammatory disease. Usually present in sexually active women by polymicrobial microorganisms. This diagnosis is rarely suspected in pubertal virgin women. Case report: An 11 years old virginal female, who has surgery records of urogenital sinus repaired. Asked for a difficult management of a febrile abdominal pain, which results to be a TAO in a mullerian anomaly. Conclusion: In every virginal female adolescent with a TAO, should be consider a mullerian anomaly in the differential diagnosis...
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Humanos , Feminino , Criança , Abscesso/etiologia , Ductos Paramesonéfricos/anormalidades , Doenças das Tubas Uterinas/etiologia , Doenças Ovarianas/etiologia , Diagnóstico Diferencial , Inflamação/etiologiaRESUMO
Background: Primary malignant tumors of appendix are uncommon and usually found during the pathological examination of surgical pieces of appendectomies. Aim: To report the clinical and pathological features of appendiceal malignant tumors. Material and Methods: Review of medical and pathological reports of patients subjected to an appendectomy between 1998 and 2006 in two regional hospitals. Results: Fifteen appendiceal malignant tumors in 2,687 pathological studies were detected (0.55 percent of all studies) in one hospital. In the other 10 tumors were detected in 4,939 studies (0.2 percent). Nine bearers of tumors were male. In each hospital 93 and 80 percent of patients had an acute appendicitis, respectively. The pathology report informed a neuroendocrine tumor in 87 and 70 percent of patients of each hospital, respectively, followed by non-Hodgkin lymphoma and adenocarcinoma. In nine patients a staging study was performed. Four patients died during follow up, one of them due to tumor disseminations. Conclusions: Although appendiceal tumors appear in only 0.3 percent of all appendectomies, the pathological study of the excised appendix is fundamental for the diagnosis.
Introducción: Las neoplasias malignas primarias del apéndice cecal son infrecuentes, generando un gran problema diagnóstico, evidenciándose la mayoría de las veces de forma incidental en el estudio histopatológico (EH). Nuestro objetivo es analizar y comparar las características epidemiológicas, clínicas, quirúrgicas e histológicas de las neoplasias malignas primarias apendiculares en dos hospitales regionales de alta prevalencia en cáncer. Materiales y Métodos: Se realizó un estudio retrospectivo de serie de casos, se seleccionó pacientes con diagnóstico de neoplasia apendicular maligna en los Hospitales Regionales de Antofagasta (HRA) y Valdivia (HRV) entre 1998-2006, se excluyeron pacientes con neoplasias malignas secundarias. Los datos se analizaron mediante estadística descriptiva y χ2. Resultados: En HRA se pesquisaron 15 (0,55 por ciento) casos de tumores malignos primarios en 2.687 EH, en HRV se encontraron 10 (0,20 por ciento) casos en 4.939 EH. Siendo el universo muestral de 25 pacientes. En HRA, 8 fueron en hombres y 7 en mujeres, con edad media de 30 años. En HRV fueron 1 y 9 respectivamente, con edad media de 37,4 años. El 93 por ciento y el 80 por ciento se presentaron como cuadro apendicular agudo respectivamente. La histopatología evidenció Tumor Neuroendocrino (MET) en 87 por ciento y 70 por ciento respectivamente, seguido por Linfoma no Hodgkin y adenocarcinoma. Se realizó estudio de extensión en 4 y 5 pacientes respectivamente, cuatro pacientes fallecieron en el período de seguimiento, uno a causa de diseminación. Discusión: En ambos centros la presentación clínica fue similar, el NET fue el más frecuente. La incidencia fue significativamente mayor en HRA, p < 0,05. El estudio histopatológico rutinario es fundamental para el diagnóstico y tratamiento.
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Humanos , Masculino , Adulto , Feminino , Neoplasias do Ceco/cirurgia , Neoplasias do Ceco/epidemiologia , Apendicectomia , Abdome Agudo/etiologia , Neoplasias do Ceco/patologia , Estudos Retrospectivos , Distribuição por SexoRESUMO
El Cáncer de Tiroides constituye la neoplasia del sistema endocrino más prevalente en el mundo (1 por ciento de cánceres totales); el tipo morfológico más común corresponde al Carcinoma Papilar de Tiroides (CPT). Chile cuenta con pocas caracterizaciones epidemiológicas de esta patología, generando un verdadero problema de salud pública al subvalorarla. OBJETIVO: Obtener una visión global del CPT y comparar datos epidemiológicos entre Hospital Regional de Antofagasta (HRA) y Hospital Regional de Valdivia (HRV). MATERIAL Y MÉTODO: Se realizó un estudio de tipo descriptivo retrospectivo de fichas clínicas con diagnóstico confirmado mediante biopsia de CPT, residentes en la II o XIV región de Chile, durante el período 2005-2011. Los datos recabados se tabularon según sexo, edad y región respectiva mediante Excel 2011, calculando adicionalmente la tasa anual de CPT por región. Los datos y valores obtenidos fueron descritos y comparados entre ellos. RESULTADOS: El HRA presentó 79 casos de CPT, con tasa anual promedio (TAP) de 2,03x100.000 hab.; 88,6 por ciento fueron mujeres y 11,4 por ciento hombres; 30,4 por ciento eran <45 años y 69,6 por ciento >45 años. El HRV presentó 88 casos, con TAP de 3,34x100.000 hab.; 84,1 por ciento fueron mujeres y 15,9 por ciento hombres; 52,3 por ciento eran ≤45 años y 47,7 por ciento >45 años. DISCUSIÓN: Según regiones la II presentó menos TAP de CPT que la XIV, existiendo en la última una tendencia al alza y en la II a la disminución, contrastando con la información conocida. Variaron los grupos etarios afectados, la II presentó mayor cantidad de casos >45 años, en cambio, en la XIV la mayoría fue <45 años, contrastando con la literatura...
Thyroid cancer is the more prevalent endocrine neoplasia in the world (1 percent of total cancers); the most common morphological type corresponds to Papillary Thyroid Carcinoma (CPT). Chile has few epidemiologic characterization of this pathology, creating a real public health problem because the underestimating of it. OBJECTIVE: Get an overview of CPT and compare epidemiological data, between Antofagasta Regional Hospital (HRA) and Valdivia Regional Hospital (HRV).METHODS: We performed a retrospective descriptive study of medical records with biopsy-confirmed diagnosis of CPT, residents of the II or XIV region of Chile, during the period 2005-2011. The collected data was tabulated by sex, age and region concerned by Excel 2011, additionally calculating the annual rate of CPT by region. The data and values obtained were described and compared with each other. RESULTS: The HRA presented 79 cases of CPT, with average annual rate (TAP) of 2.03x100.000 pop., 88.6 percent were women and 11.4 percent men, 30.4 percent were ≤45 years and 69.6 percent percent>45 years. The HRV presented 88 cases, with TAP of3.34x100.000 pop., 84.1 percent were women and 15.9 percent men, 52.3 percent were <45 years and 47.7 percent >45 years. DISCUSSION: The second region had less TAP CPT compared to the XIV region. In the last one there is an increased incidence in general, while in region II tends to decrease, contrasting with the existing information. A variation in the affected age groups was found, the II Region had more cases >45 years, however, in XIV region the majority was <45 years, in contrast to the literature...
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Humanos , Masculino , Adulto , Feminino , Pessoa de Meia-Idade , Carcinoma Papilar/epidemiologia , Neoplasias da Glândula Tireoide/epidemiologia , Distribuição por Idade e Sexo , Chile/epidemiologia , Epidemiologia Descritiva , Estudo ObservacionalRESUMO
Myeloid sarcoma is a form of extra-medullary myeloid neoplasia. Cytogenetic characterization is hampered in the absence of invasion to the bone marrow, origin of cells that are usually studied in cytogenetic studies. We report a 13 years old mole presenting with a mass in the right shoulder. A biopsy of the tumor disclosed a Myeloid Sarcoma. A conventional cytogenetic study of a bone marrow aspirate did not show t (8;21) translocation. A fluorescent in situ hybridization (FISH) performed in the paraffin embedded biopsy of the tumor, detected a chromosome 11 trisomy.
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Cromossomos Humanos Par 11 , Sarcoma Mieloide/genética , Sarcoma Mieloide/patologia , Trissomia/diagnóstico , Adolescente , Biópsia , Humanos , Hibridização in Situ Fluorescente , MasculinoRESUMO
Myeloid sarcoma is a form of extra-medullary myeloid neoplasia. Cytogenetic characterization is hampered in the absence of invasion to the bone marrow, origin of cells that are usually studied in cytogenetic studies. We report a 13years old mole presenting with a mass in the right shoulder. A biopsy of the tumor disclosed a Myeloid Sarcoma. A conventional cytogenetic study of a bone marrow aspirate did not show t (8;21) translocation. A fluorescent in situ hybridization (FISH) performed in the paraffin embedded biopsy of the tumor, detected a chromosome 11 trisomy.
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Adolescente , Humanos , Masculino , Sarcoma Mieloide/genética , Sarcoma Mieloide/patologia , Trissomia/diagnóstico , Biópsia , Hibridização in Situ FluorescenteRESUMO
El tumor sólido-pseudopapilar del páncreas (TSPP) es una neoplasia infrecuente (1-2% de los tumores exocrinos), que afecta predominantemente a mujeres jóvenes, con bajo potencial de malignidad (15% da metástasis). Su diagnóstico preoperatorio es difícil, principalmente debido a que a la imagenología no tiene una característica que la pueda diferenciar de otros quistes pancreáticos, por lo que generalmente es un hallazgo histopatológico. El tratamiento quirúrgico presenta buena sobrevida, incluso en presencia de metástasis. Presentamos 3 casos con cuadro clínico, imagenología, tratamiento e histopatología, con el fin de aportar más información, sobre esta infrecuente patología.
The solid-pseudopapillary tumors of the pancreas (TSPP) are a uncommon neoplasm (1-2% of exocrine tumors). Are more frequent in young women and presents a low malignant potential (15% develop metastases). Its preoperative diagnosis is very difficult, because these tumors haven`t radiological features that makes distinguish from the other pancreatic cysts tumors. Usually are a histopathological finding. Surgical therapy provides good survival, even in the presence of metastases. We present 3 cases with clinical, imaging, treatment and histopathology to provide more information about this rare disease.
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Humanos , Feminino , Adulto , Neoplasias Pancreáticas/cirurgia , Pancreaticoduodenectomia , CistosRESUMO
BACKGROUND: Overcrowded emergency departments (EDs) are used by undiagnosed tuberculosis (TB) patients. TB infection control measures are seldom prioritized, making EDs potential foci of unrecognised nosocomial transmission. OBJECTIVE: To quantify TB infection risk among health care workers in an ED in a high TB-burden setting, Lima, Peru, and to evaluate TB infection control measures. METHODS: Consenting ED staff were tested for TB infection at baseline and after 1 year using the QuantiFERON-TB Gold In-Tube (QFT-G). In parallel, sputum for TB culture was requested from patients spending >2 h in the ED, irrespective of presenting complaint. Infection control measures were documented and room ventilation measured. RESULTS: Over 1 year, there were 2246 TB patient-hours of exposure in the ED from 153 different patients. At baseline, 56% of the 70 staff recruited were QFT-G-positive; 27 of 31 baseline-negatives consented to follow-up after 1 year, and eight (30%, all clinical staff) tested positive. Annual incidence of infection was 1730 per 100,000 population. TB infection control measures were sub-optimal, with no patient screening, no isolation rooms, inadequate ventilation and sporadic respirator use. CONCLUSIONS: ED staff were exposed to an unexpectedly large TB burden in the workplace, resulting in a high rate of TB infection. TB infection control should be prioritized in EDs, especially in high-prevalence settings.
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Transmissão de Doença Infecciosa do Paciente para o Profissional/prevenção & controle , Exposição Ocupacional/prevenção & controle , Tuberculose/prevenção & controle , Adulto , Serviço Hospitalar de Emergência/normas , Feminino , Seguimentos , Arquitetura Hospitalar , Humanos , Masculino , Recursos Humanos em Hospital , Peru/epidemiologia , Tuberculose/diagnóstico , Tuberculose/transmissão , Ventilação/normasRESUMO
Hepatitis C Virus (HCV) is a cause of secondary chronic immune thrombocytopenic purpura (ITP). We report a 43 year old man with mild Hemophilia A, who received blood transfusions during childhood, that consulted for epistaxis and ecchymoses. The laboratory showed a platelet count of 23.000/mm³, positive HCV serology and elevated transaminases. Steroids administered in pulses followed by oral doses resulted in a partial response requiring a second pulse and association of azathioprine. A steroidal diabetes appeared. Given his refractoriness, splenectomy and liver biopsy were performed. He continued on azathioprine maintaining a platelet count near 50.000/mm³ but continued with bleeding episodes. Liver biopsy showed a chronic active hepatitis.
Assuntos
Adulto , Humanos , Masculino , Hemofilia A/complicações , Hepatite C Crônica/complicações , Púrpura Trombocitopênica Idiopática/virologia , Contagem de Plaquetas , Carga ViralRESUMO
Background: Total gastrectomy is recommended by some groups for poorly differentiated gastric cancer due to the multicentric nature of this tumor. Aim: To assess if subtotal gastrectomy achieves a good disease control in patients with undifferentiated or poorly differentiated gastric cancer. Material and Methods: Retrospective review of medical records of patients with undifferentiated or poorly differentiated gastric cancer, subjected to a subtotal gastrectomy between 1988 and 2006. Five years survival was calculated. Results: Fifty two patients aged 23 to 80 years were identified (30 males). Three had undifferentiated and 49 poorly differentiated tumors. One patient had a positive proximal margin. After a median follow up of 52 months, five years survival was 47 percent. Thirteen percent were lost from follow up. Conclusions: Five years survival of patients with undifferentiated or poorly differentiated gastric cancer and subjected to subtotal gastrectomy, was 47 percent.
Existen grupos quirúrgicos que preconizan la gastrectomía total para los cánceres gástricos mal diferenciados, por el riesgo de la multicentricidad y la infiltración oral no sospechada. Objetivo: Evaluar si la gastrectomía subtotal (GST) presenta un buen control de la enfermedad en el cáncer gástrico antral indiferenciado y mal diferenciado. Describir sus resultados anatomopatológicos y la sobrevida a 5 años. Material y Método: Estudio descriptivo. Se revisó el registro de pacientes con cáncer gástrico del servicio de cirugía del Hospital Base de Valdivia, entre los años 1988 y 2006. La población de estudio incluye pacientes con adenocarcinoma gástrico antral mal diferenciado e indiferenciado que fueron sometidos a una GST y aquellos pacientes con 2 cánceres en el estómago. Se recopilaron entre otras variables: edad, grado de diferenciación, tipo histológico, márgenes oral y caudal y se calculó la sobrevida global a 5 años. Además se describió el rendimiento de la endoscopia digestiva alta (EDA) en el diagnóstico de las lesiones multicéntricas. El Software utilizado fue el STATA 10.0. Resultados: Se incluyeron 52 pacientes. La mediana de edad fue 61 a±os. Tres (5,77 por ciento) tumores fueron indiferenciados y 49 (94,23 por ciento) mal diferenciados. Un (1,92 por ciento) paciente resultó con el margen oral positivo. La sobrevida global a 5 a±os fue 47 por ciento. La EDA detectó todos los tumores multicéntricos. Conclusión: La GST en el cáncer gástrico antral indiferenciado y mal diferenciado logra un buen control de la enfermedad con buena sobrevida a 5 años.
Assuntos
Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Idoso de 80 Anos ou mais , Adenocarcinoma/cirurgia , Antro Pilórico/cirurgia , Gastrectomia/métodos , Neoplasias Gástricas/cirurgia , Adenocarcinoma/diagnóstico , Adenocarcinoma/mortalidade , Adenocarcinoma/patologia , Endoscopia do Sistema Digestório , Gastrectomia/estatística & dados numéricos , Neoplasias Gástricas/diagnóstico , Neoplasias Gástricas/mortalidade , Neoplasias Gástricas/patologia , Estudos Retrospectivos , Análise de SobrevidaRESUMO
Hepatitis C Virus (HCV) is a cause of secondary chronic immune thrombocytopenic purpura (ITP). We report a 43 year old man with mild Hemophilia A, who received blood transfusions during childhood, that consulted for epistaxis and ecchymoses. The laboratory showed a platelet count of 23.000/mm³, positive HCV serology and elevated transaminases. Steroids administered in pulses followed by oral doses resulted in a partial response requiring a second pulse and association of azathioprine. A steroidal diabetes appeared. Given his refractoriness, splenectomy and liver biopsy were performed. He continued on azathioprine maintaining a platelet count near 50.000/mm³ but continued with bleeding episodes. Liver biopsy showed a chronic active hepatitis.
Assuntos
Hemofilia A/complicações , Hepatite C Crônica/complicações , Púrpura Trombocitopênica Idiopática/virologia , Adulto , Humanos , Masculino , Contagem de Plaquetas , Carga ViralRESUMO
El tumor sólido-pseudopapilar del páncreas (TSPP) es una neoplasia infrecuente (1-2 por ciento de los tumores exocrinos), que afecta predominantemente a mujeres jóvenes, con bajo potencial de malignidad (15 por ciento da metástasis). Su diagnóstico preoperatorio es difícil, principalmente debido a que a la imagenología no tiene una característica que la pueda diferenciar de otros quistes pancreáticos, por lo que generalmente es un hallazgo histopatológico. El tratamiento quirúrgico presenta buena sobrevida, incluso en presencia de metástasis. Presentamos 3 casos con cuadro clínico, imagenología, tratamiento e histopatología, con el fin de aportar más información, sobre esta infrecuente patología.
Assuntos
Humanos , Adulto , Feminino , Carcinoma Papilar/cirurgia , Carcinoma Papilar/diagnóstico , Neoplasias Pancreáticas/cirurgia , Neoplasias Pancreáticas/diagnóstico , Biópsia , Imuno-Histoquímica , Excisão de Linfonodo , Biomarcadores Tumorais , Pancreatectomia , Esplenectomia , Tomografia Computadorizada por Raios XRESUMO
Introducción: El tumor de células pequeñas redondas desmoplásico (TCPRD), es una neoplasia agresiva maligna poco frecuente que afecta a adolescentes y adultos jóvenes. Usualmente son intraabdominales asociados con un mal pronóstico. Existen algunas publicaciones donde incluyen manifestaciones paratesticulares. Caso: Reportamos un caso de un joven de 29 años que consulta por aumento de volumen del hemiescroto izquierdo de 3 meses de evolución. Al examen destacaba 2 nódulos duros uno en relación al polo inferior y el otro al epidídimo de aproximadamente 2 cm. Alfafetoproteína y beta HCG eran normales. Se decide exploración quirúrgica donde biopsia rápida confirma tumor que se origina en las envolturas y que infiltra hacia el testículo. La biopsia definitiva informó tumor desmoplásico de células pequeñas redondas. El estudio de extensión con tomografía axial computarizada y radiografía de tórax no mostró metástasis. El paciente recibió 2 ciclos de QMT con ciclofosfamida, etoposido, adriamicina y cisplatino, con buena tolerancia, evolucionando con depresión medular moderada que se recupera. Actualmente 6 años después del diagnóstico el paciente se encuentra en remisión completa. Discusión: Al parecer y según los últimos reportes de la literatura, la ubicación paratesticular ha mostrado mejor pronóstico en comparación con los tumores abdominales. Se debe incluir este diagnóstico diferencial al enfrentarse con tumores paratesticulares.
Introduction: Small round cell desmoplastic tumor (SRCDT) is an infrequent malignant tumor that affects adolescents and young adults. Usually they occur in the abdomen. Paratesticular manifestations have been reported. Case report: A 29 year old male presented with a 3 month history of a mass in the left scrotum. Physical exam showed 2 hard nodules in the scrotum. Serum levels of alpha-fetoprotein and beta-HCG were normal. The patient was submitted to surgery. Frozen section confirmed a tumor arising in the paratesticular area with involvement of the testis. Permanent sections showed a SRCDT. CT scans and chest x-rays showed no metastases. The patient received two courses of ciclophosphamide, etoposide, adryamicin and cisplatinum. Treatment was well tolerated. The patient is in complete remission at 6 years following the diagnosis. Discussion: Paratesticular location seems to have a better prognosis compared to intraabdominal tumors. SRCDT should be included in the differential diagnosis of paratesticular tumors.