47-year-old female with a new foci mass. Evaluate mass. A vitamin E capsule overlies the medial soft tissues of the left thigh, presumably representing the patient's palpable area of concern. Note is made of a focus of fat signal intensity within the subcutaneous tissue along the medial aspect of the thigh/femoral diaphysis, underlying the aforementioned skin marker, with increased signal abnormality peripherally on fluid sensitive sequences, measuring approximately 17 x 7 x 13 mm (AP by TR by CC). There is thin peripheral enhancement on postcontrast sequences. No additional masses or pathologic enhancement is identified. The imaged musculature is normal in appearance. No bone marrow signal abnormality is identified.
17 mm mass with fat signal intensity which appears most consistent with a lipoma, although atypical lipoma remains as a differential consideration. Follow-up evaluation by an orthopedic oncologist is recommended.