Hereditary multiple exostoses

Case contributed by Bahman Rasuli
Diagnosis certain

Presentation

Painless and palpable masses around the right knee joint.

Patient Data

Age: 25 years
Gender: Male
x-ray

Multiple exostoses around the distal femur, proximal tibia, and fibula on the right side

No acute fracture

No joint effusion.

Case Discussion

Hereditary multiple exostoses (also known as diaphysial aclasis or osteochondromatosis) is an autosomal dominant condition, characterized by the development of multiple osteochondromas.

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