Seo Sang-Hee, Sung Hyun-Woo
Department of Dermatology and Medical Research Institute, Pusan National University Hospital, Yangsan, Korea.
Ann Dermatol. 2011 May;23(2):258-61. doi: 10.5021/ad.2011.23.2.258. Epub 2011 May 27.
Pachydermodactyly (PDD) is a rare, benign form of digital fibromatosis and this is characterized by asymptomatic soft tissue swelling that affects the lateral aspects of the proximal interphalangeal (PIP) joints of the fingers. Although the etiology of PDD is unknown, the possibility of repetitive minor trauma by habitual or compulsive habits of interlacing the fingers or rubbing of the fingers has been suggested as a cause by several authors. We experienced a 14-year-old boy who was diagnosed as having PDD by the clinical manifestations and this was supported by a radiological study and the routine laboratory tests. He also had the habit of repetitively manipulating his hands when feeling emotional distress. PDD sometimes can be misdiagnosed as a rheumatic condition. Although an unusual disorder, PDD should be considered in the differential diagnosis of patients who present with digital bulbous swelling.
厚皮性多指（趾）畸形（PDD）是一种罕见的良性指（趾）纤维瘤病，其特征是无症状的软组织肿胀，累及手指近端指间（PIP）关节的外侧。尽管PDD的病因尚不清楚，但几位作者认为，手指交叉或摩擦的习惯性或强迫性习惯导致的反复轻微创伤可能是其病因。我们遇到一名14岁男孩，根据临床表现诊断为PDD，放射学研究和常规实验室检查也支持这一诊断。他在情绪困扰时也有反复摆弄双手的习惯。PDD有时可能被误诊为风湿性疾病。尽管是一种不常见的疾病，但在出现指（趾）球样肿胀的患者的鉴别诊断中应考虑PDD。
