R. NICKBRYANMDPATRICIA A.HUDGINSMD
A dermoid cyst originating from the eustachian tube is a rare congenital anomaly, with only 14 cases reported in the literature, to our knowledge.1,2 Most cases occur in females and in the left ear.2 Approximately 7% of all dermoids develop in the head and neck area, and more than 50% of these are found in the periorbital region and 13% in the nasal cavity.3 Although dermoids are considered benign developmental malformations, their location within the relatively inaccessible eustachian tube, with resultant obstruction, can cause significant morbidity.4
Radiology Quiz Case 3: Diagnosis. Arch Otolaryngol Head Neck Surg. 2005;131(9):826–827. doi:10.1001/archotol.131.9.826
Coronavirus Resource Center
Customize your JAMA Network experience by selecting one or more topics from the list below.
Create a personal account or sign in to: