Abstract
BackgroundSubperiosteal hematoma of the iliac bone is reported as a rare disorder that specifically occurs in young patients after obvious trauma. This report presents seven cases of male adolescent athletes with subperiosteal iliac hematoma without blunt trauma that was identified as an incidental radiolucent lesion on the iliac bone mimicking neoplasm. The purpose of this report is to describe clinical features and radiological findings of silent subperiosteal hematoma of the iliac bone. Subjects and methodsWe retrospectively reviewed the clinical data and radiological appearance of 7 patients who presented with subperiosteal hematoma of iliac bone. ResultsAll seven patients had no obvious trauma and no serious symptoms. All patients were middle school or high school male students who regularly participated in vigorous sports activity; five soccer players, one baseball catcher, and one basketball player. The X-ray showed radiolucent lesion on the iliac bone. Lens-shaped mass without involvement of psoas muscle with ghost native cortex sign and overlying periosteal calcification on CT scan was characteristic radiological finding on subperiosteal iliac hematoma. ConclusionSubperiosteal iliac hematomas can be caused by vigorous sports activity in adolescence. This condition is not always associated with serious symptom. It can be identified as a radiolucent lesion mimicking a neoplasm.
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