成人Spitz痣

A case of adult Spitz nevus

报告1例成人Spitz痣。患者男,21岁。左小腿内侧皮损2个月。组织病理检查示真皮内嗜碱性梭形细胞团块,个别区域与表皮相连并成巢。真、表皮交界处可见嗜酸性均质小体,浅层细胞团块间血管增生。细胞无明显异形。免疫组化染色证实为黑素细胞来源。诊断:Spitz痣。

A case of aduh Spitz nevus is reported. A 21-year-old male presented with a nodule on the left leg for 2 months. The histopathologic examination showed a symmetrical eosinophil clusters in the dermis. Nests of epithelioid and spin- die cells without pigment extended focally into the epidermis, with Kamino bodies along the der,no-epidermal junction. Vascu- lar proliferation was evident between cell masses in upper dermis. Cells had regular shape. Immunohistochemical staining cou- firmed the melanocytic origin of nevus. The diagnosis of Spitz nevus was made.