Solitary cylindroma of tragus of the ear mimicking a keloid

Abstract

Cylindromas are very rare primitive sweat gland tumours differentiating towards eccrine or apocrine line. We present a case of cylindroma of tragus of external ear in a 50-year-old female. It was diagnosed clinically as keloid. After excision, histopathological and immunohistochemistry (IHC) studies confirmed diagnosis of solitary cylindroma.

Keywords

• Cylindroma
• histopathology
• immunohistochemistry
• keloid
• tragus