Osteochondroma Presenting at Unusual Site Iliac Wing in 16 Year Old Boy

Osteochondromas rarely grow from flat bones such as scapula and pelvis. These tumors grow in sync with the growth of the child. They usually involve the growing ends of long bones, more commonly the distal end of the femur. We report a 16-year-old boy presenting to us with an osteochondroma of the iliac wing. It was a rare sessile variant. The tumor was causing him mechanical block to squatting and interfered activities of daily living, including clothing wear and symptomatic impaction on hard surfaces. The tumor was surgically removed by extraperiosteal resection. The patient was followed up for 6 month. He did not suffer from a recurrence or mechanical symptom after 6 month. Pelvis forms an unusual site of presentation for an osteochondroma. Complete removal of these tumors extra periosteally gives a drastic relief to the patient�s symptoms. The patient should be followed up carefully to look for recurrence of this tumor.