Hereditary Multiple Exostoses: A Case Report

Abstract

Background: Hereditary Multiple Exostoses (HME) is a rare bone disease, usually associated with deformity and pressure symptoms. It is an autosomal dominant disorder characterized by the development of benign tumors growing outward from the metaphyses of long bones and can lead to considerable psychosocial problems. Thus, We report a rare case of HME with some peculiar features, in a 16- year-old Moroccan pupil, manifested with a six year history of multiple swellings on the trunk, the pelvic and scapular belt, and both upper and lower limbs, with no sign of malignancy or pressure symptoms. The patient had also a family history of similar swellings. Radiological findings showed the presence of multiple exostoses in these localisations. Biopsy of one of the lesions confirmed the presence of osteochondroma on histopathology. Though rare, HME do occur in our environment. The treatment is individualized, with small asymptomatic or minimally symptomatic lesions followed up and only supportive care provided. Larger symptomatic lesions may cause major physical handicap and may be resected.