PMC

Panel A—Colorectal anastomosis already stapled, SB on the right, no internal hernia, colon lying over the aorta. Panel B—Proximal colon going down to the pelvis but still on the left of the D-J flexure and of the SB. Panel C—Proximal colon going down to the pelvis on the left of the D-J flexure and the SB is only on the right side, no internal hernia. Panel D—Middle colic pedicle and its right branch visible going down at the medial side of the colon and aorta. No SB loops are left underneath the colon

Dissection of inferior mesenteric artery and its branches. Note an Accessory left colic artery (ALCA) branching off from the Inferior Mesenteric artery (IMA) and further dividing into two transverse branches taking part in the formation of arterial arc for the perfusion of the transverse colon (TC) and the splenic flexure (SF)
Photograph of the branches of Inferior Mesenteric Artery showing AA-abdominal aorta, SA-sigmoidal artery, IMA-inferior mesenteric artery, LCA- left colic artery, Desc. LCA-descending branch of left colic artery, Asc. LCA- ascending branch of left colic artery, ALCA-accessory left colic artery, TC-transverse colon, SF-splenic flexure, S-Superior, I- Inferior, L- left, R- Right

Gangrenous cholecystitis with colitis: axial scan shows the signs of pericholecystic inflammation that extend to the right colic flexure with diffuse colic wall thickening (white arrows).