Warthin's tumor of the neck.
Warthin's tumor is usually found in the parotid gland, but may be found in other sites as heterotopic tissue. The most likely explanation for this occurrence is a relationship to the branchial cleft apparatus. Complete surgical excision of Warthin's tumor effects a cure in most cases.
D000235:Adenolymphoma / Q000473:pathology*; D005260:Female; D006258:Head and Neck Neoplasms / Q000473:pathology*; D006801:Humans; D008875:Middle Aged