Clinical Challenge 2: October, 2015

The Resolution
Diagnosis
Osteochondromatosis (Figure 2).
 
Learnings
Osteochondromatosis is an inherited disorder in which multiple osteochondromas (black arrows), or benign tumors in the form of cartilage-capped bony projections, are seen throughout the skeleton. Patients may have anywhere from 2 osteochondromas to hundreds of them. Most are incidentally found in adolescents on x-rays. If osteochondromas are not discovered incidentally, patients present in the first or second decade of life with palpable bony masses and limb shortening. Complications of osteochondromas include fractures, bony deformities, neurologic and vascular injuries, bursa formation, and malignant transformation.