Abstract

Choristoma is the presence of normal tissue in an abnormal anatomical location. The presence of mature cartilage in the tonsil represents a choristoma as it is not a normal constituent of the tonsil and is a very rare entity. More than 70% of lingual choristomas occur in females; the tongue is the most common site, accounting for 80% of the cases. Osseous choristoma of the tongue is a rather rare entity, with less than 100 cases reported in the literature. We hereby report an osteocartilaginous choristoma of the palatine tonsil in a 42-year-old male patient who presented with a sore throat and difficulty in swallowing, for which he underwent tonsillectomy. Choristoma was an incidental discovery. Histopathology features were consistent with chronic tonsillitis along with incidental occurrence of hyaline cartilage and bone. As choristoma is a benign tumor that usually does not require any further treatment after simple excision, therefore no further treatment was given. The patient is currently under a 2- year follow-up and does not show any signs of recurrence. This case creates awareness about this rare entity among pathologists and clinicians so that overzealous and unnecessary treatment is avoided.

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