Requena Camila Bueno, Miot Hélio Amante, Marques Mariângela Esther Alencar, Miot Luciane Donida Bartoli
Paulista State University Júlio de Mesquita Filho, UNESP, Botucatu, SP, Brazil.
An Bras Dermatol. 2014 Mar-Apr;89(2):359-60. doi: 10.1590/abd1806-4841.20142689.
Pachydermodactyly is a rare and benign form of acquired digital fibromatosis characterized by the expansion of soft tissue around proximal phalanges and interphalangeal joints. The etiology remains unknown, although it is suggested that repetitive mechanic trauma like the interlacing or rubbing of the fingers can lead to skin thickening. We report a case of a young man with skin thickening around interphalangeal joints and compulsive finger manipulation habit. The histopathology disclosed hyperkeratosis, discrete papillomatosis, mild increase of fibroblasts and dermal mucinosis. The lesions regressed partially, after finger manipulation was stopped.
厚皮性多指（趾）畸形是一种罕见的后天性指（趾）纤维瘤病良性形式，其特征为近端指（趾）骨和指间关节周围软组织增生。病因尚不清楚，不过有人认为，诸如手指交叉或摩擦等重复性机械性创伤可导致皮肤增厚。我们报告一例年轻男性病例，其指间关节周围皮肤增厚且有强迫性手指操作习惯。组织病理学显示有角化过度、散在性乳头瘤病、成纤维细胞轻度增多和真皮粘蛋白沉积症。停止手指操作后，病变部分消退。
