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Findings: There is a large well-defined, oval-shape soft tissue lesion in the right upper medial thigh within the adductor longus muscle. The lesion is isointense to the muscles on T1 and hyperintense on T2 –weighted images. The lesion shows marked enhancement after the contrast administration. No significant cystic/necrotic changes, fat component, or calcifications are seen in it. No extra-muscular extension is seen. There is no invasion of myofascial planes, subcutaneous soft tissues, neurovascular bundle, or underlying femur. No skip lesion or significant lymphadenopathy is seen. Differential diagnosis includes neurofibroma, myxoma, or soft tissue sarcoma.