Abstract: Bowen's disease is a type of squamous cell carcinoma in situ of the skin. The pigmented form is rare and represents less than 2% of cases. We report a case of a 74-year-old black man with a blackened and asymptomatic leg injury for about 6 months. Clinically, and under dermatoscopy, the injury was suggestive of melanoma or melanoacanthoma, and a definitive diagnosis was made by histopathological examination.

Abstract: Extranodal NK/T-cell lymphoma nasal type is a rare disease that mainly affects the nasal cavity and paranasal sinuses of males in the fifth decade of life. It has aggressive and locally destructive behaviour, and can be complicated by the hemophagocytic syndrome, conferring high lethality to the disease. This article describes a case of NK/T-cell lymphoma nasal type in a previously healthy patient, exemplifying its rapid and fulminant course.

Abstract Woolly hair nevus is a rare condition characterized by a structural anomaly of the hair, restricted to certain areas of the scalp. The hair becomes coiled and slightly hypopigmented. The term woolly hair refers to changes that affect all the scalp and has a hereditary character. We present a case of woolly hair nevus, that developed at the age of 2 years, associated with dental diastema and verrucous epidermal nevus.

Abstract Perforating dermatoses are a group of skin diseases characterized by transepidermal elimination of dermal material. The disease is divided into two groups: the primary group and the secondary group. The classical or primary perforating dermatoses are subdivided into four types according to the eliminated dermal materials: Kyrle disease, perforating reactive collagenosis, elastosis perforans serpiginosa, and perforating folliculitis. The secondary form is known as acquired perforating dermatosis. The term was proposed in 1989 by Rapini to designate the perforating dermatoses affecting adult patients with systemic disease, regardless of the dermal materials eliminated. This report describes a case of the disease with elimination of collagen and elastic fibers in a patient with chronic renal failure.

RESUMO Objetivou-se verificar a influência das variáveis de pressão plantar e amplitude de movimento (ADM) de quadril, joelho e tornozelo sobre o risco de quedas em idosas. Participaram 39 idosas, avaliando-se a Pressão Máxima e Média sobre a plataforma de baropodometria. Em seguida, realizou-se o teste Timed Up and Go (TUG) e posteriormente a avaliação da ADM de flexão de quadril e joelho e flexão plantar e dorsal de tornozelo por meio de um goniômetro. As variáveis baropodométricas (Pressão Máxima e Pressão Média) tenderam a influenciar os valores do TUG conforme valor do teste de hipótese (p=0,051), demonstrando correlação moderada (r=0,487), com destaque para a Pressão Máxima, que apresentou correlação significativa com o TUG (p<0,005). Entretanto, a ADM articular de quadril, joelho e tornozelo não apresentaram correlações significativas entre as variáveis baropodométricas e risco de quedas. Sobre a análise da associação entre o TUG, categorizado em baixo e médio risco de quedas, e as quedas, não foram observadas diferenças (p=0,475). O aumento da pressão máxima apresentou relação com o risco de quedas, mas a ADM de quadril, joelho e tornozelo não apresentaram relação sobre o risco de quedas e as variáveis baropodométricas na população investigada.

ABSTRACT The aim of this study was to verify the influence of plantar pressure and range of motion of hip, knee and ankle variables with the risk of falls in older women. Thirty-nine older women participated, for which Maximum and Medium Pressure were evaluated using the baropodometry platform. Then, we performed the Timed Up and Go (TUG) test and subsequently the range of motion (ROM) evaluation of hip and knee flexion and dorsal and plantar ankle flexion through the use of a goniometer. Baropodometric variables (Maximum Pressure and Medium Pressure) showed a tendency to influence the values of the TUG according to the value of the hypothesis test (P = 0.051), demonstrating a moderate correlation (R = 0.487), with emphasis on the Maximum Pressure showing significant correlation with the TUG (P<0.005). However, the joint range of motion of hip, knee and ankle showed no significant correlations in the baropodometric variables and in the risk of falls. Concerning the analysis of the association between the TUG classified with low and medium risk of falls with the falls, no differences were found (P=0.475). The increase in maximum pressure showed a relation with the risk of falls, though the range of motion of hip, knee and ankle showed no relation to the risk of falls and the baropodometric variables in the researched population.

RESUMEN Se buscó evaluar la influencia de las variables de la presión plantar y la amplitud de los movimientos (ADM) de la cadera, rodilla y del tobillo en el riesgo de caídas en adultos mayores. Han participado del estudio 39 adultos mayores, de los que se evaluaron su presión máxima y media a través de la baropodometría. Además, se empleó la prueba Timed Up and Go (TUG) y la evaluación de la ADM de flexión de cadera y rodilla, y flexión plantar y dorsal del tobillo a través de un goniómetro. Las variables baropodométricas (presión máxima y media) presentaron influencias en los valores del TUG según el valor de la prueba de hipótesis (p=0,051), lo que demostró una moderada correlación (r=0,487), destacándose la presión máxima, que presentó una significativa correlación con el TUG (p<0,005). La ADM articular de la cadera, rodilla y del tobillo no ha presentado significativa correlación entre las variables baropodométricas y el riesgo de caídas. Acerca del análisis entre el TUG, caracterizado de bajo y mediano riesgo de caídas, y las caídas no se han observado diferencias (p=0,475). El aumento de la presión máxima presentó relación con el riesgo de caídas, sin embargo la ADM de la cadera, rodilla y del tobillo no presentó relaciones entre el riesgo de caídas y las variables baropodométricas evaluadas en los participantes.

A doença de Cowden ou síndrome dos hamartomas múltiplos é de transmissão autossômica dominante cuja tríade dermatológica compõem-se de triquilemomas faciais múltiplos (hamartomas do infundíbulo folicular), fibromas orais e queratoses acrais benignas. A importância desta doença está no aumento da susceptibilidade a malignização de algumas lesões, especialmente de mama, tireóide e trato genito-urinário. Apesar da expressão fenotípica variada, esta doença é geralmente desconhecida. Consequentemente, muitos casos não são diagnosticados ou o diagnóstico vem tardiamente, o que ressalta a importância do diagnóstico precoce da doença para que o paciente possa ser monitorado periodicamente para diagnóstico e tratamento precoce de doenças malignas.

Cowden's disease or multiple hamartoma syndrome is an autosomal dominant inherited disease and the main dermatological features are facial trichilemmomas (hamartomas of the follicular infundibula), oral fibroma and benign acral keratoses. The importance of this disease lays in the increased susceptibility to malignization of some lesions, especially breast, thyroid and genitourinary tract. Despite its varied phenotypic expression, this disease is generally unknown. Consequently, many cases are undiagnosed or diagnosis comes at a late stage, which reinforces the importance of an early investigation of the disease so the patient may have periodic check-ups to discover and treat malignancies.