Cartilaginous choristoma of tonsil: A hidden clinical entity.

Choristomas are aggregates of microscopically normal cells or tissues in aberrant locations. Cartilaginous choristomas of the oral cavity are rare and occur preferentially on the tongue and less often in sites such as the soft palate and gingiva. We report a case of cartilaginous choristoma in a 24-year-old male presenting with persistent tonsillitis. Histopathological examination demonstrated the presence of mature island of hyaline cartilage surrounded by lymphoid hyperplasias.