Anna Rita Ferrante Mitidieri de Oliveira

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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.(More)
Porokeratosis BLOCKINis BLOCKINa BLOCKINskin BLOCKINdisorder BLOCKINclinically BLOCKINcharacterized BLOCKINby BLOCKINannular BLOCKINplaques BLOCKINwith BLOCKINkeratotic BLOCKINborders BLOCKINresembling BLOCKINthe Great Wall of China and histopathologically by cornoid lamellae. The disease has several clinical variants. Porokeratosis ptychotropica,
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