肌周皮细胞瘤1例

 报告肌周皮细胞瘤1例。患者女，54岁，因“左前臂皮下肿物1年余，缓慢增大1个月”就诊。皮肤科检查：左侧前臂见一隆起性结节，约1.0 cm×0.5 cm×0.2 cm大小，质软，边界清楚，与周围组织无粘连，表面皮肤完整，无红肿、破溃、糜烂，压痛阳性，未触及血管搏动。皮损组织病理：真皮内见大量椭圆形和梭形肌样细胞团，血管呈裂隙样，分枝状增生，瘤细胞呈同心圆状围绕血管生长。免疫组化:SMA （+）、desmin（+）、CD34(血管+)、D2 40(-)、Ki 67(<5%)。结合临床表现、组织病理及免疫组化结果，诊断为肌周皮细胞瘤。予手术切除，随访1年未见复发。

A case of myopericytoma

 A 54 year old female visited the hospital for ″subcutaneous mass on the left forearm for more than 1 year and gradually increased in size for 1 month″.Dermatological examination showed an elevated solitary, soft nodule sized 1.0 cm×0.5 cm×0.2 cm on the left forearm. The surface skin appeared normal except tenderness. Histopathology of the skin lesion showed masses composed of ovoid and spindle shaped myoid cells in the dermis, branching vasculature, and concentric pattern of tumor cells around the blood vessels.Immunohistochemistry showed SMA(+), desmin(+), CD34(+), D2 40(-) and Ki 67( <5%).According to the clinical manifestations and histopathological findings, the diagnosis of myopericytoma was made.The nodule was surgically removed, and no recurrence was found after 1 year of follow up.