Folliculosebaceous cystic hamartoma (FSCH) is an uncommon cutaneous hamartoma with rather distinct histopathologic features than typifying clinical features.

• 摘要毛囊皮脂线囊状错构瘤是一种罕见的表皮肿瘤，组织病理上具有特殊的变化，但临床表现并无特色。