Fanti P A, Tosti A
Department of Dermatology, University of Bologna, Italy.
Dermatologica. 1989;178(4):209-12. doi: 10.1159/000248429.
Eight cases of subungual epidermoid cysts associated with distinctive nail abnormalities are reported. Toes and thumbs were the most frequent sites affected by this probably not rare condition. The most striking clinical features were subungual hyperkeratosis associated with shortened and dystrophic nail plate. A history of trauma was frequent. In all cases, the nail biopsy showed marked hyperplasia of the nail bed and epidermoid cysts in the dermis. The authors propose a new classification for subungual epidermoid cysts.
报告了8例伴有独特指甲异常的甲下表皮样囊肿。脚趾和拇指是这种可能并不罕见的疾病最常累及的部位。最显著的临床特征是甲下角化过度伴指甲板缩短和营养不良。外伤史很常见。所有病例的指甲活检均显示甲床明显增生以及真皮内有表皮样囊肿。作者提出了一种甲下表皮样囊肿的新分类方法。
