外毛根鞘囊肿样痣一例

A Case Report of Nevus Trichilemmocysticus

本文报道1例外毛根鞘囊肿样痣的临床病理表现。该患者男性,48岁,全身多发毛囊性丘疹40余年,头皮结节30余年。专科查体见头皮多发皮下丘疹、结节,面部、双耳廓棘刺状毛囊角栓,躯干、四肢带状或线状黑头粉刺,伴毛发缺失及牙齿发育不良。组织病理表现符合外毛根鞘囊肿。外毛根鞘囊肿样痣是临床罕见的器官性表皮痣,本文通过典型病例报道及既往文献回顾,以期提高临床医师对该疾病的认识。

This article reports a case of nevus trichilemmocysticus.The patient,a 48⁃year⁃old man,presented with multiple filiform keratoses and nodules.Physical examination identified multiple subcutaneous papules and nodules on the scalp,filiform keratoses on the face and bilateral ears,in addition to linear black⁃heads on trunk and limbs.The patient also exhibited hair loss and hypoplastic tooth.Histopathology revealed trichilemmal cyst.Nevus trichilemmocysticus is a rare organoid nevus.We reviewed literature in order to raise the awareness of the syndrome.