Nasal hair matrix cyst mimicking dermoid cyst.

: Dermoid cysts are primarily observed in the head and neck region. Nasal dermoids are uncommon. The terms nasal dermoid, nasal epidermoid, and nasal sebaceous cysts are used interchangeably by clinicians. Hair matrix cyst is a variant of epidermal cyst resembling the pattern of pilomatrixoma. Formerly, nasal hair matrix cyst has not been reported at all. Here, an additional pathologic proof is presented as well.