Cyst inferior to right ear with extension into right ear lobe. Face: There is a well-defined ovoid cystic lesion in the right preauricular subcutaneous tissues, which measures up to 20 mm. The lesion is extrinsic to the parotid gland. Indeed, the major salivary glands are unremarkable. The imaged cervical lymph nodes are not enlarged. The orbits are unremarkable. There is a right maxillary sinus retention cyst. The imaged intracranial structures are unremarkable. Internal Auditory Canals: The bilateral cranial nerve 7 and 8 complexes are intact. There is no evidence of mass lesions. The inner ear structures, including the cochlea, vestibule, endolymphatic duct, and semicircular canals, appear unremarkable. The bilateral mastoid air cells and middle ears also appear unremarkable.
A cystic lesion in the preauricular subcutaneous tissues measuring up to 20 mm may represent an inclusion or sebaceous cyst versus a first branchial cleft cyst.