sigmoid mesocolon


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Related to sigmoid mesocolon: mesentery proper, Transverse mesocolon, hilum of spleen

mesocolon

 [mez″o-ko´lon]
the peritoneal process attaching the colon to the posterior abdominal wall, and called ascending, descending, or transverse, according to the portion of the colon to which it attaches.
pelvic mesocolon (sigmoid mesocolon) the peritoneum attaching the sigmoid colon to the posterior abdominal wall.

sigmoid mesocolon

[mez′ōkō′lən]
Etymology: Gk, sigma + eidos + mesos, middle, kolon
a fold of peritoneum that connects the sigmoid colon with the pelvic wall, forming a curved line of attachment with the apex of the curve located at the division of the left common iliac artery. The fold is continuous with the iliac mesocolon and ends in the median plane over the rectum at the level of the third sacral vertebra. Between the two layers of the fold are the sigmoid and the superior rectal vessels. Compare mesentery proper, transverse mesocolon.

mesocolon

the mesentery that attaches the colon to the dorsal abdominal wall; it is called ascending, descending or transverse, according to the portion of the colon to which it attaches.

ascending mesocolon
see mesocolon (above).
pelvic mesocolon
the peritoneum attaching the sigmoid colon to the dorsal abdominal wall. Called also sigmoid megacolon.
sigmoid mesocolon
see pelvic megacolon (above).
References in periodicals archive ?
3 Lin et al8 have reported a band extending from the iliac fossa to the sigmoid mesocolon, while Itagaki et al9 reported the presence of a jejuno-jejuno congenital band.
Since neither of the bowel loops was gangrenous, ileosigmoid knot was undone by rotating one and half turns anti-clockwise and mesosigmoidoplasty was done by incising sigmoid mesocolon longitudinally from root towards apex and suturing transversely with interrupted stitches to shorten the sigmoid mesocolon.
On laparotomy we found around 300-350 ml of blood in the pelvis, 10x10x8 cm large encapsulated mass arising from the sigmoid mesocolon, freely mobile and separate from the sigmoid colon wall.