A case of epidermoid cyst occurring in the parapharyngeal space and submandibular space

Abstract

Epidermoid cyst is not very rare in the head and neck region. It is generally found in the floor of the mouth, but occasionally occurs in unusual locations. We report a very rare case that occurred in tha lateral deep spaces.
A 15-year-old girl was referred for examination of a soft, painless mass in the submandibular region. Intraoral examination revealed swelling of the right tonsil. A computed tomographic scan and magnetic resonance imaging revealed a large cystic lesion in the parapharyngeal space and the submandibular space. Excision of the cyst was performed by a submandibular approach. The pathological diagnosis was an epidermoid cyst lined by keratinized squamous epithelium. Two years after the operation, no signs of recurrence or functional disturbance were detected