Histopathologically, the dermis showed loose storiform arrangement of collagen bundles in a myxoid matrix, with spindled or stellate-shaped fibroblast-like cells, moderately accentuated vasculature and an increased number of mast cells.

• 组织病理学在真皮可见似纤维母细胞之梭状细胞及星状细胞松散地散布在黏液样之基质中，血管构造及肥大细胞之量亦有增加。