Diagnosis of granular cell tumour of the upper lip using polymer HRP detection system

Abstract

Oral granular cell tumour is a rare soft tissue tumour, can develop on any skin or mucosal surface. Granular cell tumors can affect all parts of the body; however, the head and neck areas are affected 45% to 65% of the time. Of the head and neck cases 70% of lesions are located intraorally (tongue, oral mucosa, hard palate). The next most common location that lesions are found in the head and neck area is the larynx(10%).^[1] In patients 30% of cases have been reported to occur in the lip, but this presentation in adults is extremely rare. The present study is concerned a case of oral granular cell tumour in a 60 year-old female, located in the upper lip. Histopathological examination revealed granular cells which stained positively for S-100 protein; a finding supportive of a neural origin. A history of trauma was elicited in this case, and the lesion was treated with surgical excision.