Osseous Choristoma of the Tongue-A Case Report
摘要
Osseous choristoma is a rare benign lesion in head and neck region. Here, we report a case of osseous choristoma on dorsum of the tongue in a 21 year-old female who presented with an asymptomatic pedunculated nodule on the posterior third of the tongue. She underwent total excision of the lesion under general anesthesia and there were no complications upon 2 weeks follow-up and no recurrence noted 1 year post-operatively. In reviewing previous articles, osseous choristomas are proliferations of the histopathologically normal tissue in an ectopic location. They may mimic other benign lingual soft tissue swellings and the only determinant of these lesions is their histopathology where it consists of developed harversian canal system beneath the stratified epithelium. They are benign and rarely recur after excision.