A 30 year old man came with a swelling in the left thigh since eight years. The swelling was painless and showed a gradual increase in size.
Ultrasonography of the swelling shows a large, well-defined, lobulated lesion measuring approximately 18 x 17 cm. There is heterogeneously hyperechoic tissue separated by hypoechoic septae. The septae show arterial vascularity. The plain CT scan of the left thigh shows a lobulated, septated lesion with fat attenuation. There are a few tiny foci of calcification. The fat planes with the muscles of the thigh are maintained. The underlying bone is normal.