Lateral dermoid cyst of the floor of mouth: unusual radiologic and pathologic findings.

Auris Nasus Larynx

Department of Otolaryngology-Head and Neck Surgery, Massachusetts Eye and Ear Infirmary, 243 Charles Street, Boston, MA 02114, USA.

Published: October 2011

A lateral dermoid cyst is a rare lesion of the floor of mouth, with only 12 cases reported in the literature. We describe the case of a 60-year-old man with a slowly enlarging mass in the submandibular region. Magnetic resonance imaging demonstrated a lesion containing multiple uniformly rounded foci, creating a "sack-of-marbles" appearance. Needle aspirations showed atypical findings, and the mass was excised. Histopathology revealed a cyst containing a keratinizing stratified squamous epithelial lining with apocrine and eccrine glands. These findings were diagnostic of a dermoid cyst, which should be considered in the differential diagnosis of any midline or lateral cervical lesion.

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http://dx.doi.org/10.1016/j.anl.2011.01.002DOI Listing

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