14. Acute Pancreatitis A surgical specimen of the transverse colon and greater omentum shows extensive fat necrosis. Note bright yellow foci. The mesenteric fat has been completely digested away so as to reveal the isolated blood vessels.
25. Acute pancreatitis. The pancreas is enlarged (blue arrow) with indistinct and shaggy margins. There is peripancreatic fluid ( red arrow) and extensive peripancreatic infiltration of the surrounding fat ( black arrow).
26. 74-year-old man with acute pancreatitis. Axial contrast-enhanced CT scan shows one fluid collection in anterior pararenal space and minimal necrosis.