Cortical desmoid-like lesion of the proximal humerus and its occurrence in gymnasts (ringman's shoulder lesion)

Abstract

Eighteen gymnasts were interviewed and examined radiograph ically for a cortical irregularity of the proximal humerus simu lating malignancy. Fifty percent of the gymnasts had the lesion which is considered to be a benign reactive lesion secondary to excessive forces at the pectoralis major insertion to the proxi mal humerus. All patients were asymptomatic. The lesion is probably unique to gymnasts, particularly those involved with strength moves.