How to identify the white line of Toldt?
Toldt white line is intended as either the whitish line of lateral peritoneal reflection along the outer edge of the ascending and descending colon (see picture) or the junction of parietal peritoneum with Denonvilliers fascia.
What does the Mesocolon do?
The mesocolon or mesentery of the sigmoid colon provides a major avenue for spread of disease between the abdominal cavity and the pelvis. It is directly continuous with the posterior bare area of the colon, the bare area of the rectum, and, in females, the broad ligament.
Why is the white line of toldt surgical significance?
The white line of Toldt represents the avascular plane for incision and is the anterior confluence of the colonic visceral peritoneum with the parietal peritoneum of the lateral abdominal wall.
What is the marginal artery of Drummond?
Background. The marginal artery of Drummond (MA) is an anatomically variable blood vessel that forms a major anastomotic network between the superior and inferior mesenteric arteries. It vascularizes the transverse and descending colons and is a major contributor to the collateral circulation of left-colic structures.
Is mesocolon part of peritoneum?
Peritoneum, mesentery, gastrocolic ligament, transverse mesocolon… ouch… all these terms can easily get you confused. But they just are all terms for specific parts of peritoneum.
What is pelvic mesocolon?
The sigmoid mesocolon is a fold of peritoneum that attaches the sigmoid colon to the pelvic wall. It is one of the four mesenteries in the abdominal cavity. It has an “inverted V” line of attachment, the apex of which is near the division of the left common iliac artery.
Why is it called the marginal artery?
The marginal artery of Drummond is named after British pathologist and anatomist Sir David Drummond (1852–1932) who found that even though the three main colic arteries were surgically tied off, contrast medium injected into the ileocolic artery still passed to the sigmoidal branches 4,5.
What is the difference between mesocolon and mesentery?
The portion of the dorsal mesentery that attaches to the greater curvature of the stomach, is known as the dorsal mesogastrium. The part of the dorsal mesentery that suspends the colon is termed the mesocolon. The dorsal mesogastrium develops into the greater omentum.
Does the peritoneum grow back?
When traumatized, whether by surgery or due to inflammatory processes, a series of responses come into action to regenerate the injured part of the peritoneum.
What is peritoneal lining?
Your peritoneum is a membrane that lines the inside of your abdomen and pelvis (parietal layer). It also covers many of your organs inside (visceral layer). The space in between these layers is called your peritoneal cavity.
What is the importance of mesenteries?
The mesentery attaches your intestines to the wall of your abdomen. This keeps your intestines in place, preventing it from collapsing down into your pelvic area. If the mesentery doesn’t properly form during fetal development, the intestines can collapse or twist, per 2017 research.
Can you live without a right coronary artery?
Congenital absence of the right coronary artery (RCA) is a rare congenital malformation of the cardiovascular system with risk involvement that can lead to death.
What are the four mesenteries?
- the mesentery of the small intestine or mesentery proper,
- transverse mesocolon.
- sigmoid mesocolon.