获得性肢端纤维角皮瘤一例

A case of acral fibrokeratoma

52岁女性患者,右手示指丘疹逐渐增大1年余。皮肤科情况:右手示指末端指间关节指腹侧单发丘疹,半球形,黄豆大小,肤色,隆起于皮面,表面无鱗屑,触之较硬、无压痛。组织病理示:表皮角化过度,棘层肥厚,表皮突增宽下延。真皮中央为致密的胶原纤维束,周围有血管包绕,血管垂直于表皮,诊断:获得性肢端纤维角皮瘤。

A 52-year-old female patient presented with a one-year history of a growing and painless papule in her right index finger.Physical examination revealed that a sessile,dome-shaped and skin-colored papule was located on the ventral part of the right index finger*s distal interphalangeal joint.A complete excision was adopted to get the histopathology,the findings of which included hyperkeratosis,acanthosis,widen and downward extension of rete ridges,and the dermis was composed of thick collagen bundles with blood vessels surrounded which oriented to the epidermis perpendicularly.The diagnosis of acral fibrokeratoma was established.