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OBJECTIVES: To assess the concordance between lymphoma diagnoses made via tissue biopsy by local pathologists and also to assess the after review of these specimens by more specialized hematopathologists. METHODS: A prospective, non-interventional and multicenter study was conducted at seven sites in Mexico from January 2017 to October 2017. Eligible biopsies were sampled from patients with a previous diagnosis of lymphoma on lymph node biopsy or a diagnosis of extranodal lymphoma, with adequate amount and tissue preservation for the review analysis. The biopsy tissues reviewed by local pathologists were also reviewed by hematopathologists participating in the study. The concordance in diagnosis results was classified into three categories: diagnostic agreement, minor discrepancy and major discrepancy. RESULTS: Out of 111 samples received, 105 samples met the eligibility criteria and were included for full analysis. The median patient age (range) was 54 (16-94) years. A diagnostic agreement was observed in 23 (21.9%) biopsies, minor discrepancies were observed in 32 (30.5%) biopsies and major discrepancies were observed in 50 (47.6%) biopsies. Diagnostic concordance varied across the seven study sites; the rate of major discrepancies ranged from 0% to 100% and the rate of diagnostic agreement ranged from 0% to 81.8%. Out of the 105 reviewed biopsies, a total of 89 cases were diagnosed as lymphoma by hematopathologists. CONCLUSIONS: This study showed that major discrepancies were observed following the review by hematopathologists compared with that of the local pathologist's initial diagnosis in nearly one-half cases. In addition, there was a wide variation in the percentage of diagnostic agreements and discrepancies among different study sites.

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Las proteínas de superficie del merozoíto (MSP) son de importancia en la invasión parasitaria al glóbulo rojo. La proteína MSP-5, encontrada en merozoítos libres, tiene un papel en la inmunización de ratones al P. falciparum y P. yoelii, pese a lo cual algunos estudios cuestionan su rol en la invasión. La proteína MSP-6 forma junto con MSP-1 y MSP-7 un complejo en la superficie del merozoíto, liberado del parásito cerca del momento de la invasión al glóbulo rojo. Con el fin de predecir el fenómeno de unión de péptidos de las proteínas de superficie MSP-5 y MSP-6, se aplicó una teoría de unión al HLA clase II, a la totalidad de secuencias de 20 aminoácidos de tales moléculas. Se calcularon los valores de probabilidad, combinatoria y entropía de 168 secuencias nonámeras sobrelapadas de la proteína MSP-5 y 228 de MSP-6. Por último se aplicó la teoría de unión a todos los péptidos nonámeros de tres proteínas construidas computacionalmente, cada una con una longitud de 500 aminoácidos. Para la proteína MSP-5 se predijo un total de 31 secuencias asociadas al macroestado de unión y 137 al de no unión, mientras que se predijo la existencia de 35 secuencias asociadas al macroestado de unión para MSP-6 y 193 al de no unión. Se encontraron respectivamente 100, 111 y 91 secuencias predichas de unión para las tres proteínas teóricas construidas. La predicción teórica de unión de péptidos es útil para facilitar el desarrollo de vacunas, al evidenciar el orden físico-matemático subyacente al fenómeno.(AU)

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In this report, we describe a rare case of brown tumor and mediastinal parathyroid adenoma. This report emphasizes the value of radionuclide scintigraphy in the setting of persistent disease following parathyroid surgery.

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La encefalitis límbica se caracteriza por el inicio subagudo de alteraciones cognitivas, crisis epilépticas temporales y sintomatología psiquiátrica (1,3) . Las causas más frecuentes de este desorden poco usual son desórdenes y enfermedades de tipo autoinmune, dentro de las cuales se incluyen los síndromes paraneoplásicos (2,4) . La gran mayoría de las veces, la sintomatología neurológica se manifiesta previo a la detección de una neoplasia, sin embargo, ésta no se detecta en la totalidad de los casos (3,4) . Se presentan las imágenes con 18 F-FDG PET/CT de un paciente con sintomatología neurológica típica de encefalitis límbica que se traduce desde el punto de vista de la imagenología molecular, en alteraciones metabólicas a nivel del hipocampo.

Limbic encephalitis is characterized by sub acute onset of cognitive functions, temporal lobe epilepsy and psychiatric symptoms. Most common causes of this rare disorder include autoimmune diseases, and rarely, as a manifestation of a paraneoplastic syndromes. Most of the times, neurological symptoms precede the detection of a primary tumor, however, a neoplasm is not often identified. In this article we describe F-18 FDG PET/CT images of a male patient with typical neurological symptoms that suggested limbic encephalitis, which, from a molecular point of view, translates into metabolic changes at the level of the hippocampal region.

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El compromiso testicular por linfoma es una manifestación extranodal de la enfermedad, manifestación inicial de una enfermedad nodal oculta o manifestación tardía de linfoma nodal diseminado. Corresponde al 5 por ciento de todos los tumores testiculares y es la neoplasia mas común del testículo en los pacientes mayores de 50 anos., sin embargo el linfoma primario de testículo es extremadamente raro. corresponde al 1 por ciento de los LNH. La mayoría de los linfomas testiculares son LNH B difuso de célula grande con tendencia a presentar metástasis extra ganglionares, incluyendo piel, SNC, anillo de Waldeyer, testículo contra lateral, pulmones, siendo extremadamente inusual a músculo. Se presentan las imágenes con 18 F-FDG PET/CT de un paciente con LNH B difuso de célula grande de alta agresividad con metástasis a músculos de las pantorrillas.

Testicular involvement by lymphoma may be a manifestation of primary extra nodal disease, initial manifestation of clinically occult nodal disease or a later manifestation of disseminated nodal lymphoma . Occur in 5 percent of all testis tumors and it is the most common testis cancer in patients older of 50 years. However the primary testis lymphoma is very uncommon. Correspond to1 percent of LNH. Most testicular lymphomas are diffuse large B-cell lymphomas with tendency of widespread to extra nodal places, including skin, SNC, Waldeyer,s ring, contra lateral testis, lungs, and is very unusual to find muscle’s metastases. In this article we describe F-18 FDG PET/CT images of metastases to the muscles in a case of diffuse large B-cell lymphoma of high agressivity.

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Introduction: copper supplementation therapy has been used in children with acute and severe malnutrition. Scientific evidence has shown that malnourished children with edema have free copper in plasma which could produce oxidative stress. Objective: To compared plasma concentrations of free copper between children with acute and severe malnutrition and a control group. Methodology: Cross sectional study where 66 normal and malnourished children were studied. A longitudinal study (before and after type) design was used including 40 children with severe and acute malnutrition; free copper was merasured by high-resolution capillary electrophoresis; ceruloplasmin and PCR by nephelometry. Results: In the cross sectional study children with marasmus had higher free copper serum concentrations than children with oedematous malnutrition, but the difference was not significant. In the control group this metal was not found. Children with oedema showed significant lower ceruloplasmin concentrations than children with marasmus (p=0.00) while the difference in PCR was also no significant for both groups. When the relationship between free copper serum concentrations and the presence of infection was analyzed no significant differences were obtained. However, serum albumin concentration was significantly lower for children with oedematous malnutrition than the marasmic group (p=0.016). After children recovered the appetite in the longitudinal study, serum free copper concentration decreased for both groups and ceruloplasmin concentration increased but no significant differences were observed. Conclusion: Copper supplementation could be considered as nutritional therapy for undernourished children since the beginning of the nutritional treatment, as it is recommended by WHO.

Introducción: La recuperación de los niños con desnutrición aguda grave incluye suplementación con cobre desde el inicio de la terapia; existen evidencias que niños edematosos pueden tener cobre libre en plasma el cual podría generar estrés oxidativo. Objetivo: Comparar concentraciones séricas de cobre libre y ceruloplasmina en un grupo de desnutridos agudos graves y un grupo control Metodología: estudio transversal al ingreso entre niños con y sin desnutrición en una muestra de 66 sujetos y longitudinal de tipo antes y después en 40 niños desnutridos. Se determinó cobre libre por electroforesis capilar de alta resolución; ceruloplasmina y PCR por nefelometría, además de variables clínicas Resultados: En el transversal, los marasmáticos presentaron niveles de cobre libre mayores que los edematosos sin diferencia significativa; en el grupo control este metal no se detectó. En los edematosos la concentración de ceruloplasmina fue significativamente menor con relación a los marasmáticos (p=0.00) y la PCR no presentó diferencia significativa entre ellos. No se encontraron diferencias significativas entre los niveles de cobre libre y presencia o no de infección. La albúmina se encontró más baja en los edematosos con diferencia significativa respecto a los marasmáticos (p=0.016). En el longitudinal, al recuperar el apetito el cobre libre disminuyó y la ceruloplasmina aumentó en los dos grupos sin diferencia significativa Conclusión: el suplemento de cobre como componente de la terapia nutricional puede ser suministrado a los desnutridos desde el inicio como lo propone el protocolo de la OMS.

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This article presents qualitative findings concerning women's maternal roles, based on interviews conducted in a study on role integration and health, in a Colombian sample of 60 women who are "por día" domestic workers. The results describe the women's worldview as they discuss the stresses and the satisfactions of their mothering roles. The results also include the coping strategies used to deal with the stresses inherent in the maternal role. Women describe how the companionship of their children, watching their children grow, and the nurturing they give their children provides them with pride and deep satisfaction. These satisfying aspects of their role are burdened by the stress related to worry about children's bad behavior, their illness, and a pervasive generalized sense of constant worry. Being single parents adds more stress to these women's lives. Participants coped emotionally through distraction and through talking with friends. Other coping strategies included calming self, problem solving, talking with children, and substance use. The authors conclude with a discussion of the relationship between poverty and work situation as contexts for understanding maternal roles.

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This is a report of a phenomenological study of Colombia's "por día" domestic workers that examined their actions in promoting their health, in preventing illnesses, and in caring for themselves. A cross sectional sample of 60 per diem female domestic workers in one large city in Colombia were interviewed using open-ended interview questions about their health, self-care actions, health care resources, and patterns of utilization. We argue that knowledge of women's experiences with the health care system, their knowledge of their bodies, and the daily demands on their time and life are vital in defining and planning health care services that women need. We demonstrated that the structural conditions in and for health care services and the lack of knowledge of their bodies act as barriers to women's utilization of health care services and to maintaining their health. Our findings support the need for considering women's health from a development perspective and for offering more integrated and cohesive health care services for women.

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The first purpose of this article is to argue the significance of using international and culturally diverse exemplars in developing nursing knowledge. The second is to identify some urgent priorities in the development of nursing knowledge, particularly as related to women's health. The lived experiences of three women from Brazil, Egypt, and Colombia who are in low-income, devalued, but important jobs are presented through their voices. These storied accounts highlight nursing's mission in dealing with the marginalized client as a human being whose context is historical and sociocultural. The implications for knowledge development as driven by international exemplars, diverse experiences, and narration of stories are discussed.

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The article presents the qualitative findings about the spousal role of women who are in per diem domestic work in Colombia. Sixty participants obtained through a random sample of employer homes were interviewed about the nature and the quality of their roles. The results provided are based on the participants' descriptions of their subjective experiences as spouses within the larger context of women's roles and daily life experiences. The results suggest that the women find many aspects of their spousal roles satisfying. On top of these experiences are their feelings that the spouses' role provides them with cariño (being loved and cared for). Additionally, sharing parenting was an important aspect of the satisfaction in the relationship. On the other hand, the women identified many stresses including a constant sense of demoralization and being fearful of abandonment. Being, or fearing, the other women and living with their spouse's aggressions were also described as stressful aspects of their role. Strategies to cope with the stress included taking time out alone, having emotional reactions, blaming the spouse for the stress, and talking with others. The meaning of the need for security and the price of servitude are discussed.

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A total of 85 strains of Gram positive cocci isolated from beach water and sand located in Valparaiso bay, and Viña del Mar, Chile, were examined for 59 morphological, physiological and biochemical characteristics. The taxonomic data were analysed by numerical taxonomy using Ssm coefficient and the Unweighted Pair Group Method of Association (UPGMA). At 80% similarity level, four phenons were obtained. Of the 85 strains 31% were classified as Staphylococcus epidermidis, 9% were classified as Staphylococcus haemolyticus, 36% were classified as Staphylococcus spp. and 24% as Staphylococcus aureus. Epidemiological considerations are made in relation with the probable impact that the isolation of Staphylococcus aureus and coagulase negative Staphylococci would have on the health of the population.

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