Nevo sebáceo de Jadassohn no couro cabeludo - reconstrução com retalho de rotação bilateral / Nevus sebaceous of Jadassohn of the scalp - reconstruction with bilateral rotational flap

O nevo sebáceo de Jadassohn é hamartoma benigno congênito da pele, mais incidente no couro cabeludo, podendo apresentar-se na face. Devido ao potencial de malignização, sua excisão muitas vezes se faz necessária. Lesões situadas no couro cabeludo constituem desafio ao cirurgião devido às características anatômicas do local, com escassez e inelasticidade da pele adjacente. Neste relato, apresentamos um caso de excisão de nevo sebáceo de Jadassohn no couro cabeludo, com fechamento da ferida operatória por retalho de rotação bilateral, técnica muito simples e versátil, excelente para topografias de difícil reconstrução, como o couro cabeludo.

The nevus sebaceous of Jadassohn is a congenital benign hamartoma of the skin that occurs more frequently in the scalp, but can also arise in the face. Due to its potential for malignization, exeresis is often required. Lesions located in the scalp are challenging to surgeons because of the anatomical characteristics of this body site, namely scarcity and inelasticity of the adjacent skin. In the present report, the authors describe a case of excision of a nevus sebaceous of Jadassohn located in the scalp, using a bilateral rotation flap ­ a very straightforward and versatile technique, excellent for reconstructing difficult topographies such as the scalp ­ for the closure of the surgical wound.

Porokeratosis ptychotropica

Abstract Porokeratosis is a skin disorder clinically characterized by annular plaques with keratotic borders resembling the Great Wall of China and histopathologically by cornoid lamellae. The disease has several clinical variants. Porokeratosis ptychotropica, which has recently become part of these variants, is quite rare and little known. The entity is characterized by verrucous plaques – which may resemble a psoriasis plaque – that affect the regions of the buttocks, most commonly the gluteal cleft, with or without extremity involvement. Itching is often present. We report a rare case of porokeratosis ptychotropica and highlight its unusual manifestation (single plaque), the first case reported in the Brazilian literature.

Primary cutaneous Ewing sarcoma - Case report

Ewing sarcoma is a primitive neuroectodermal tumor rarely occurs in the skin and sobcutaneous tissues. Generally Ewing's sarcoma is a primary bone tumor, but when present in soft tissues it characterizes an extremely uncommon clinical picture. It usually involves the deep subcutaneous tissue or muscles, and more rarely occurs like a primary skin cancer. Most patients are white, women, and in the second decade of life. The clinical features are a superficial mass, in average measuring 2-3 cm, of soft consistency, freely mobile and sometimes painful. The more affected locations are upper and lower extremities, trunk, head, neck or multiple lesions. The presence of metastases is very rare.