Multiple hereditary exostoses: A pseudoaneurysm masquerading as tumor

Multiple hereditary exostoses: A pseudoaneurysm masquerading as tumor.

Multiple hereditary exostoses is an autosomal dominant condition characterized by numerous benign osteochondromas. Complications are rare and can include deformity, growth abnormality, fracture, adventitial bursa formation, local mass effect on a nerve, malignant degeneration, and vascular complications including stenosis, occlusion, arteriovenous fistula, and pseudoaneurysm. We present a case ...

Popliteal pseudoaneurysm secondary to multiple hereditary exostoses.

A 20-year-old man with multiple hereditary exostoses presented with a pulsatile swelling in the posterior-medial distal thigh. He gave a history that 5 weeks previously, after squatting down then standing, he experienced a sharp pain behind his right knee. Magnetic resonance (MR) imaging demonstrated a large haematoma associated with the popliteal artery. Ultrasound imaging visualized a 9-cm po...

Hereditary multiple exostoses.

Hereditary multiple exostoses (HME) is a skeletal disorder which primarily affects enchondral bone during growth. It is characterised by multiple exostoses, usually arising in the juxtaepiphyseal region of the long bones. Exostoses that affect "almost every bone in the body" were first mentioned by John Hunter in his Lectures on the principles of surgery in 1786.1 The first family affected by H...

Manifestations of hereditary multiple exostoses.

The solitary osteochondroma, a common pediatric bone tumor, is a cartilage-capped exostosis. Hereditary multiple exostosis is an autosomal dominant disorder manifested by the presence of multiple osteochondromas. Linkage analysis has implicated mutations in the EXT gene family, resulting in an error in the regulation of normal chondrocyte proliferation and maturation that leads to abnormal bone...

Hereditary multiple exostoses: A case-report.