Results: 1568

Standardization of organoid culture for evaluation of melanogenesis induced by UVB, UVA and visible light

An. bras. dermatol; 95 (1), 2020
Abstract Background: Organoid cultures are primary cultures that maintain architectural characteristics and the relationships between cells, as well as the extracellular matrix. They are alternatives for pathophysiological or therapeutic investigation rather than animal and in vitro tests. Objective: D...

Multiple whitish papules on the posterior neck of an elderly woman

An. bras. dermatol; 95 (1), 2020
Abstract White fibrous papulosis of the neck is a rare entity, with fewer than 50 cases described. It is a benign pathology whose main interest lies in its broad differential diagnosis, especially with pseudoxanthoma elasticum. The authors report the case of a 77-year-old woman with multiple yellow-white...

Is macular lymphocytic arteritis limited to the skin? Long-term follow-up of seven patients

An. bras. dermatol; 95 (1), 2020
Abstract Background: Macular lymphocytic arteritis most commonly presents as hyperpigmented macules on the lower limbs. The pathogenesis of this disease is still unclear and there is an ongoing debate regarding whether it represents a new form of cutaneous vasculitis or an indolent form of cutaneous pol...

Diseases of wild birds in southern Rio Grande do Sul, Brazil

Pesqui. vet. bras; 40 (2), 2020
Necropsy protocols of the "Laboratório Regional de Diagnóstico" of "Faculdade de Veterinária" of the "Universidade Federal de Pelotas" were reviewed, ranging the period from 2000 to 2018. Three hundred eighty one necropsies, 25 refrigerated and/or formaline fixed organs, and seven biopsies were receiv...

Intraosseous Neurothekeoma of the Hand in a 16-year-old Boy

Abstract Soft-tissue tumors are rare in the pediatric population. First described in 1969 as myxoma of the nerve sheath, the neurothekeoma is a benign tumor lesion with presumable origin in the nerve sheath. It occurs mainly in female children and presents as a mass of slow, subcutaneous growth, asymptom...

Tuberculosis peritoneal. Caso clínico diagnosticado por laparoscopia

Metro cienc; 28 (1), 2020
RESUMEN Se presenta el caso de un paciente diabético de 55 años de edad internado en la sala de Medicina Interna del Hospital Pablo Arturo Suárez de Quito - Ecuador, que acude con un síndrome febril de 8 días de evolución que se prolongó durante la hospitalización a más de 35 días sin causa o ...

Quantificação do DNA e genotipagem de biópsias de embriões bovinos Gir e Girolando produzidos in vitro

A biópsia embrionária associada à genotipagem permite a obtenção de informações genômicas antes mesmo da transferência dos embriões. Neste estudo, foram avaliadas amostras biopsiadas de blastocistos bovinos transferidos para receptoras (n=47), sob a hipótese de que a raça (Gir ou Girolando), ...

Identificación del Virus Epstein-Barr por Hibridación in situ en pacientes con Cáncer Gástrico que asisten al Instituto de Cancerología (Incan) de Guatemala

Cienc. tecnol. salud; 7 (1), 2020
El Virus Epstein Barr (EBV) está relacionado como agente oncogénico en el desarrollo del cáncer gástrico, atribuyéndosele el 10 % de los casos de esta neoplasia a nivel mundial. No existen estudios previos que identifiquen la presencia EBV en los pacientes con cáncer gástrico en Guatemala, por lo ...