Figure 6a. Multiple symmetric lipomatosis in a 45-year-old man. (a) CT scan shows diffuse infiltration of fat between the lumbar paraspinal muscles (arrows), as well as infiltration of the left anterior abdominal wall musculature (*). (b) Photomicrograph (original magnification, x150; H-E stain) reveals lipomatous tissue (L) infiltrating muscle bundles (M).