Osseous metaplasia in a juvenile polyp: a rare case report in India.

Osseous metaplasia is a phenomenon which is described in a variety of tissue types with respect to both neoplastic and non-neoplastic conditions. In the gastrointestinal tract, osseous metaplasia (heterotopic bone formation) is rarely detected. Most of the reported cases were associated with malignant lesions. Here, we are reporting a rare case of a juvenile rectal polyp in a 14 years male, which showed osseous metaplasia on histological examination. This feature is a striking phenomenon on histological examination.