Emergency ultrasound of abdomen: no free fluid, no free air, at the umbilicus there is one mass near the abdominal wall, along from epigatric area to urinary bladder, hyperechoic, no air inside. Pressing over the mass is very painful (2 images of longitudinal and cros-sectional scan at the left umbilicus).
Blood test : elevated WBC of 16k.
Emergency doing abdomen MDCT: in cross section, sagital views at umbilicus, and frontal view this mass located from the transverse colon to nearby urinary bladder. It was great omentum.
Suspicion of a great omentum infarction (see 3 CT pictures).