The exact pathogenesis of the deformity is still obscure, but most authors believe that macrodactyly is related to neurofibromatosis or lipomata degeneration.
确切发病原因尚不清楚,多认为与神经纤维瘤病或脂肪瘤退变有关。
A 30-year-old female patient presented with macrodactyly of the left thumb, hemihypertrophy of the left lower extremity, plantar cerebriform hyperplastic mass and nodules for thirty years.