Fig. 1
From: Vascular anatomical considerations in preparing colonic flaps to replace the oesophagus
Technique for fashioning an iso-peristaltic colonic flap including the transverse colon and based on the left colic vessels. a Vascular anatomy of the colon: superior mesenteric artery (SMA) giving origin for middle colic (2) and right colic arteries (3), while the inferior mesenteric artery (IMA) gives the left colic artery (1). b Boundaries of the colonic flap (dashed line) after ligation of the middle colic vessels. Note: ligation of middle colic vessels should be below its bifurcation to allow blood flow to the right side of the flap through the marginal vessels (arrows). c Extra length of colon can be included in the flap by extending ligation to the right colic vessels as well