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Resumen El Granuloma Anular (GA) es una dermatosis inflamatoria crónica, benigna, auto limitada, de etiología desconocida. Existen numerosas variantes clínicas dentro de las cuales se encuentra la perforante, de presentación inusual. La histopatología más característica de GA, cuenta con la presencia de histiocitos epitelioides en empalizada alrededor de áreas de degeneración focal de fibras de colágeno con depósitos de mucina. La variedad perforante evidencia eliminación transepidérmica de fibras de colágeno. Se presenta un paciente de 72 años de edad, diabético, dislipémico, con lesiones pruriginosas en dorso de ambas manos, con el diagnóstico de granuloma anular perforante. Realizó tratamiento con clobetasol tópico, más antihistamínicos por vía oral, quedando una cicatriz atrófica.

Abstract Granuloma annulare is a chronic, benign, self-limiting, inflammatory dermatosis of unknown etiology. There are numerous clinical variants within which is the perforating, unusual presentation. The most histopathology characteristic of GA is the presence of palisading epithelioid histiocytes around areas of focal degeneration of collagen with mucin deposits. The perforating variety evidences transepidermal elimination of collagen tissue. A 72 years-old, diabetes, dyslipidemic patient is presented with pruritic lessions on the dorsum of both hands, with the diagnosis of perforating granuloma annulare. I perform medical treatment with topical clobetasol, leaving an atrophic scar.

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Resumen OBJETIVO: Determinar la efectividad de las técnicas de movilización articular en el rango de movimiento en pacientes adultos con capsulitis adhesiva primaria de hombro. MÉTODO: Revisión sistemática con metanálisis. La búsqueda fue realizada en las bases de datos MEDLINE/PubMed, PEDro, CENTRAL, LILACS, EMBASE, CINAHL, Scopus y Web of Science. Los criterios de elegibilidad fueron estudios que utilizaran una técnica de movilización articular oscilatoria y/o mantenida aplicada, sola o adicionada, a un programa de tratamiento en pacientes con capsulitis adhesiva primaria, en cualquier estadio. La selección de estudios y la extracción de datos fueron realizadas por dos autores de forma independiente. El riesgo de sesgo se evaluó según la herramienta propuesta por Cochrane. RESULTADOS: Se incluyeron 14 estudios con variados riesgos de sesgo. La movilización posterior versus otra técnica articular no presenta diferencia de media significativa (- 0,95 grados; intervalo de confianza de 95%; - 5,93 a 4,02), mientras que comparada con un grupo control la diferencia es de 26,80 grados (intervalo de confianza 95%; 22,71 a 30,89), además cuando se aplica un conjunto de técnicas articulares versus un grupo control, para la abducción la diferencia es de 20,14 grados (intervalo de confianza 95%; 10,22 a 30,05). En ambos casos, los resultados son estadísticamente significativos y se aprecia un tamaño de efecto moderado. CONCLUSIONES: La evidencia científica no es concluyente acerca de la efectividad de la movilización articular, dada la heterogeneidad en la metodología y sesgo de los artículos incluidos en esta revisión. Al compararla con tratamientos que no incluyen terapia manual, parecieran favorecer la mejoría del rango de movimiento y reducción del dolor, en pacientes con capsulitis adhesiva primaria de hombro.

Abstract OBJECTIVE: To determine the effectiveness of joint mobilization techniques in the range of motion in adult patients with primary adhesive shoulder capsulitis. METHODS: Systematic review with meta-analysis. The search was performed in the MEDLINE/PubMed, PEDro, CENTRAL, LILACS, EMBASE, CINAHL, Scopus and Web of Science databases. The eligibility criteria were studies that used an oscillatory and/or maintained joint mobilization technique applied alone or added-on to a treatment program in patients with primary adhesive capsulitis at any stage. Two authors carried out the selection of studies and the extraction of data, independently. Risk of bias was evaluated according to the tool proposed by Cochrane. RESULTS: We included 14 studies with variable risk of bias. Posterior mobilization compared to any other technique was not significantly different (0.95 degrees; 95% CI: - 5.93 to 4.02), whereas compared to a control group, the difference is 26.80 degrees (CI 95%: 22.71 to 30.89). When applying a set of joint techniques versus a control group, for abduction the difference is 20.14 degrees (95% CI: 10.22 to 30.05). In both cases, the results are statistically significant, and the effect size is moderate. CONCLUSIONS: The evidence is not conclusive about the effectiveness of joint mobilization. When compared with treatments that do not include manual therapy, joint mobilization seems to have a favorable effect on the range of motion and pain reduction in patients with primary adhesive shoulder capsulitis.

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Se evaluó la eficacia de la terapia fotodinámica como complemento de terapia periodontal convencional comparándola con la terapia convencional en el tratamiento de sacos periodontales en pacientes adultos con periodontitis crónica basándose en ensayos clínicos comprendidos entre los años 2010 y 2015, para determinar si su uso otorga mejores resultados para el tratamiento de esta enfermedad. Se seleccionaron ensayos clínicos aleatorios prospectivos, aleatorizados o no aleatorizados, controlados y no controlados que permitieron la comparación entre el tratamiento convencional y la terapia fotodinámica, con un grupo en el cual se utilizó sólo la terapia convencional. Los datos de los ensayos clínicos fueron ingresados al software Review Manager®. Se realizaron tres metaanálisis para las variables: Nivel de inserción clínica (NIC) y profundidad de sondaje (PS), el test de I2 fue utilizado para medir la heterogeneidad del estudio y posteriormente un análisis de sensibilidad para determinar los estudios heterogéneos. Se pudieron analizar 7 estudios, con un total de 186 pacientes, quienes fueron controlados 3 meses post tratamiento. Se utilizó la diferencia de medias, un intervalo de confianza de 95 % para medir el NIC y PS. A los 3 meses, no se encontró diferencias significativas en NIC (p= 0,93) y PS (p= 0,71). Conclusión: La terapia fotodinámica en complementación a la terapia convencional no otorga mejor resultado clínico ni estadístico comparado con la terapia convencional al evaluar el nivel de inserción clínica. Al evaluar la profundidad de sondaje es recomendable la utilización de terapia convencional sola.

The efficacy of photodynamic therapy as an adjunct to conventional periodontal therapy evaluated by comparing with conventional therapy alone in the treatment of periodontal pockets in adult patients with chronic periodontitis based on clinical trials between 2010 and 2015, to determine if its use can provide better results for treating this disease. Prospective randomized clinical trials and randomized clinical trials or non-randomized, controlled and uncontrolled that allowed comparison between a group which was applied to conventional therapy and photodynamic therapy, a similar group was selected to which you He applied only conventional therapy. Data from clinical trials entered into Review Manager®. Three meta-analyzes for the variables analyzed were performed: Level clinical attachment (NIC) and probing depth (PS), the test of I2 was used to measure the heterogeneity of the study and then a sensitivity analysis to determine which studies awardedheterogeneity. As results, seven studies analyzed in 186 patients who underwent treatment at least controlled within 3 months post treatment. The mean difference was used, a confidence interval of 95 % to measure the NIC and PS. At 3 months, no significant differences in NIC (p= 0.93) and PS (p= 0.71). In conclusion, the photodynamic therapy complementary to conventional therapy does not provide better clinical or statistical results compared with conventional therapy to evaluate the clinical attachment level. In assessing probing depth, is advisable to use conventional therapy alone.

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BACKGROUND: Giant hepatic hemangiomas (GHHs) are those that are larger than 4 cm in size. AIMS: The aim of this study was to describe GHH clinical findings, their risk factors, diagnostic approach and management, and to compare these data with those of conventional hemangiomas. METHODS: We performed a retrospective analysis of patients diagnosed with hemangiomas, whether by imaging studies or histopathology, at our hospital within the time frame of 1990-2008. The medical records of each patient were reviewed to obtain clinical and surgical data. RESULTS: Of the 57 patients with liver hemangioma, 41 (72%) were women and 32 (56%) had GHH. Liver hemangioma median size was 4.49 cm. In regard to the patients with GHH, 31.2% were asymptomatic and when symptoms presented, pain was the most common. Both symptoms and oral contraceptive exposure were more common in the GHH patients. Nine patients with GHH underwent surgery: 2 open biopsies due to diagnostic uncertainty, one enucleation, and 6 resections. CONCLUSIONS: GHHs are more prevalent in women and when symptomatic, pain is the most frequent complaint. Diagnosis is usually made through imaging studies, but when there is diagnostic doubt, surgical exploration is sometimes needed. Oral contraceptive use is most likely more of a risk factor for GHH than for conventional hemangioma, but this association needs to be studied further.

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Primary osteoarthritis (OA) is a multifactorial disorder with several genetics factors involved. Calcitonin (CT) has been suggested to possess chondroprotective effects and could play an important role in the pathogenesis of OA. The aim of this study was to investigate whether genetic variations in or adjacent to the CT gene may be associated with primary OA of the knee in Mexican mestizo population. We conducted a case-control study to investigate the association between six single nucleotide polymorphisms at the CT locus and OA of the knee in 107 cases and 106 controls. Cases were patients >40 years of age, with a body mass index (BMI) ≤ 27 and a radiologic score for OA of the knee ≥ 2. Controls were subjects >40 years of age with a radiologic score <2. Non-conditional logistic regression was developed to evaluate risk magnitude. The G allele and GT genotype frequencies of the G-706T polymorphism and the C allele and CC genotype of the C-778T polymorphism were significantly higher in patients with OA than in control subjects. The GG genotype of the G-706T was associated with lower risk of the development of OA of the knee. According to the results, the G-706T and the C-778T polymorphisms were related to the Cdx1 and Mzf1 transcription factor binding sites, respectively. Therefore, these could be related to regulation sequences in the CT gene promoter. In conclusion, G-706T and C-778T polymorphisms in the CT gene are significantly associated with the development of primary OA of the knee.

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OBJECTIVE: To analyze the preoperative shoulder ultrasound (US) findings in patients with a diagnosis of rotator cuff (RC) tear and correlate them with the arthroscopic findings. METHODS: Retrospective analysis of a consecutive series of patients with a diagnosis of RC pathology in whom US was performed and who underwent surgery (shoulder arthroscopy). The US/arthroscopic findings were correlated with Fisher's and chi2 tests. RESULTS: The total number of patients was 53. We identified US/arthroscopic correlation in 22/34 cases for the total tears (64.7%) and in 7/19 cases for the partial tears (36.8%) (p = 0.048). Overall correlation (total and partial tears) was seen in 29/53 patients (54.7%). Of the 24 patients without correlation, 11 (45.8%) had ultrasound reports of tendinitis; 75% of the cases in this group had findings of partial supraspinous tear during arthroscopy (p = 0.006). CONCLUSION: US shows an appropriate correlation with the diagnosis of RC total tear confirmed with arthroscopy, and the correlation is significantly lower for partial tears. In cases of an ultrasound-diagnosed lesion, such as tendinitis, most cases showed a partial tear during arthroscopy.

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Osteoarthritis (OA) is the most common form of destructive joint disease that is characterized by the degeneration of the articular cartilage, synovial membrane, joint capsule, and subchondral bone. The knee is a joint commonly affected for OA. Calcitonin (CT) has been suggested to have chondroprotective effects; therefore, could play a role in the pathogenesis of OA of the knee. Genetic variations in or adjacent to the CT gene may be associated with primary OA development. We conducted a case-control association study in which we examined the correlation between a dinucleotide (cytosine-adenine, CA) repeat polymorphism at the CT locus and OA of the knee in 88 patients with OA and in 111 control subjects from the Mexican mestizo population. Allele A and genotype AG frequencies were significantly higher in patients with OA than in control subjects (56.3 vs. 43.2%; p<0.001 and 40.9 vs. 26.1%; p=0.027, respectively), and were associated with the presence of OA of the knee (odds ratio [OR], 2.62; 95% confidence interval [95% CI], 1.30-5.27, and OR, 1.93; 95% CI, 1.04-3.58, respectively) using a logistic regression model adjusted for gender, age and Body mass index (BMI). The GG genotype was associated with a lower risk of OA development of the knee; thus, it may constitute a protective factor against this disease (OR, 0.40; 95% CI, 0.16-0.98). In summary, we conclude that the dinucleotide CA polymorphism in the CT gene may become a useful marker for genetic studies of OA of the knee in Mexican population.

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Allelic variants in the promoter region of the serotonin transporter (5-HTT) gene have been implicated in several psychiatric disorders and personality traits. In particular, two common alleles in a variable repeat sequence of the promoter region (SLC6A4) have been differentially associated with a display of abnormal levels of anxiety and affective illness in individuals carrying the "s" allele. The aim of this study was to compare the basal cerebral metabolic activity of non-psychiatric subjects in fronto-limbic structures to determine whether differences exist in basal metabolic activity within this functional polymorphism. PET scans with fluorine-18 fluorodeoxyglucose as radiotracer were performed in 71 non-psychiatric subjects previously screened for psychopathology and subsequently genotyped for SLC6A4; PET images were compared with SPM2 according to s/s (n = 27), s/l (n = 25), and l/l (n = 19) groups considering a significance threshold in a priori selected areas of P < 0.001 and an extent threshold > or =5 voxels. The analysis showed an effect of interest among the three genotype groups in right anterior cingulate gyrus (ACC), left middle frontal gyrus, and left posterior cingulate gyrus (PCC). Comparison between l/l vs. s/s showed increased metabolism for l/l in left middle frontal gyrus and an increase for s/s in right ACC and left PCC. Comparison between s/s vs. s/l showed an increase for s/s in left PCC and right ACC. Increased basal metabolism in fronto-limbic structures for the s/s group may be conceived as an "overactive metabolic state" of these structures, possibly related to an increased susceptibility for developing an anxiety-depression spectrum disorder.

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El crecimiento durante la etapa puberal presenta variaciones en cada edad, de acuerdo al grado de maduración de los individuos. Se describen, en el marco de un seguimiento longitudinal, los resultados referentes al crecimiento pondoestatural en mujeres de 10 a 16 años y varones de 11 a 17 años, del área norte de Santiago. Los resultados sugieren que, en la pubertad, es más importante la influencia de los grados de maduración sexual que la edad, en la determinación de peso y estatura. Por ejemplo, en varones la muestra total del seguimiento, entre 12 y 15,5 años varía entre 141 y 164 cm de estatura; en cambio, al grado 3 de vello pubiano le corresponde, en ese período, una diferencia desde 147 a 160 cm; la variación estatural correspondiente al período etario en que se dio el grado 4 de vello pubiano fue de 20 cm, en cambio en los varones con ese grado sólo varió en 9 cm. Situaciones semejantes se encontraron también en los otros parámetros y en los dos sexos. Se debería disponer de los datos de peso y estatura según edad, sexo y grado de maduración, durante el período puberal, para una adecuada evaluación del crecimiento

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