Pediatric intraosseous schwannoma in maxillary sinus: A case report with review of literature.

Neurilemmoma has been defined as a benign, encapsulated neoplasm that arises in the nerve fiber. It originates from the proliferation of Schwann cells in the perineurium causing displacement and compression of the adjacent nerve. This neoplasm is composed primarily of Schwann cells in a poorly collagenized stroma. It can occur in any age group. Neurilemmoma occurs all over the body including the head and neck region. In the head and neck region, 25%-40% of schwannoma cases have been reported. Occurrences of intraoral schwannomas are rare with reported prevalence being 1%. In the present article, we report a case of a 19-month-old baby complaining of pain and swelling. On clinical, radiological and histopathological features it was diagnosed as pediatric intraosseous schwannoma of the maxillary sinus.