Rare causes of acute abdomen and review of literature: Primary/secondary omental torsion, isolated segmental omental necrosis, and epiploic appendagitis.

POT, SOT, ISON and PEA should be considered in the differential diagnosis of patients with acute abdominal findings. In patients with PEA diagnosed in the preoperative period, a conservative approach should be considered first. In patients with a diagnosis of POT, SOT, and ISON, a surgical or conservative approach should be evaluated according to the patient's clinical condition.