Adenoid cystic carcinoma of the external auditory canal.
D003528:Carcinoma, Adenoid Cystic / Q000473:pathology; D004424:Ear Canal; D004428:Ear Neoplasms / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis