Peritoneal and omental sign 1:Sentinel clot sign

Sentinel clot sign. (a) Contrast-enhanced CT image shows a sentinel clot secondary to laceration along the fissure for the ligamentum teres (arrow), in the perihepatic space and lesser sac. (b) Contrast-enhanced CT image obtained in a patient who was undergoing anticoagulation therapy for a protein C deficiency shows a sentinel clot (arrow) surrounding the spleen.