We herein report the very rare case of a 68-year-old Japanese man with
multiple jejunal lipomatosis and diverticulosis. He was admitted to o
ur hospital with the chief complaint of melena and anemia. A barium st
udy of the small bowel showed multiple lipomatosis and diverticulosis.
An approximately 200-cm length of the jejunum was therefore resected.
Thereafter, two diverticula and 215 lipomas were recognized in the re
sected specimen. A pathological examination showed mature adipose tiss
ue with fibrous septa in the submucosal and muscularis propria. These
findings were thus suggested to be due to the attenuation of the muscu
laris propria. The complications of lipomatosis are also discussed.