Left anterolateral mid-arm irregular bony mass lesion seen broad-based on the outer cortex of mid humeral diaphysis with no line of cleavage. The lesion is seen projecting within the deltoid muscle. No definite continuation with the humerus medullary cavity. No evidence of osseous or soft tissue aggressive changes. It elicits typical fatty signal in all pulse sequences (high signal in T1 T2 and suppressed in STIR).