Presentation
From orthopedic clinic.
Patient Data
Age: 12 years
Gender: Male
From the case:
Hereditary multiple exostosis
Frontal

Extensive sessile and pedunculated exostoses arising from the femoral and tibial metadiaphseal regions bilaterally.
Case Discussion
Hereditary multiple exostoses is also known as diaphyseal aclasis, and is an autosomal dominant condition, characterized by development of multiple osteochondromas.