The CT findings of two patients with left-sided omental infarction ass
ociated with acute inflammation and abscess formation are described an
d illustrated. The patients presented with lower abdominal pain, fever
, and leukocytosis, and they exhibited a poorly defined heterogeneous
low-attenuated mass containing fat in the anterior left lower abdomen.
Although segmental omental infarction is usually a self-limiting cond
ition that may resolve spontaneously, necrosis associated with seconda
ry infection and abscess formation may develop occasionally.