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本病Mcischcr于1944年最早叙述,多为成人面部孤立性病变,易被误诊为粟粒疹、基底细胞癌、触染性软疣、毛发上皮瘤、汗腺瘤等。本文报告一例46岁男性患极少见的左耳外耳道毛囊瘤,病史十年以上,为耳异物感,近5年有耳聋。检查见左外耳道软骨部有一豌豆大小表面光滑的黄白色肿块,占据腔道四分之三,其蒂附于后壁。局麻下以圈套器切除一直径4毫米的灰白色坚实肿块,切片见组织以鳞状上皮包围且含有角
The disease was first described by Mcischcr in 1944. It was mostly adult isolated facial lesions, which could easily be misdiagnosed as mites, basal cell carcinoma, touch-associated molluscum, hair epithelium, sweat gland adenoma, and so on. This article reports the case of a 46-year-old man with a rare ear ear canal follicular neoplasm. His medical history is more than ten years old. He has foreign body sensation in the ear and has deafness in the last 5 years. Examination of the cartilage of the left external auditory canal revealed a yellow-white mass with a smooth surface on the pea surface, occupying three-fourths of the lumen, and its pedicle was attached to the posterior wall. Under a local anesthesia, an off-white, solid mass with a diameter of 4 mm was removed with a snare and the tissue was seen surrounded by squamous epithelium with an angle