What is line of toldt?
noun, plural: white lines of Toldt. (1) The lateral peritoneal reflection along the outer edge of the ascending and descending colon. (2) A junction where the peritoneum covering the abdominal wall joins with Denonvilliers’ fascia. Supplement.
What are the white lines of toldt?
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 Endoabdominal fascia?
Parietal abdominal fascia (endoabdominal fascia) may be the fascia that covers the abdominal cavity, or a generic term including extraperitoneal and visceral fascia. Transversalis fascia is the inner epimysium of transversus abdominis muscle; no separate deep investing fascia exists.
Is peritoneum a fascia?
Parietal peritoneum (or fascia): this layer is a thin serous membrane acting as a balloon which lines the abdomen and into which the organs are pressed into from the outside. Visceral peritoneum (or layer): this layer lines the organs.
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.
Is Endoabdominal fascia the same as transversalis fascia?
According to Terminologia Anatomica, endoabdominal fascia comprises: 1) transversalis fascia and 2) investing abdominal fascia: deep, intermediate and superficial. Thus, transversalis fascia is the innermost layer of endoabdominal fascia and, consequently, not synonymous with it.
What is the clinical significance of the Endoabdominal fascia?
Investing the internal surfaces of the muscular layer is a third group of abdominal fascia called the endoabdominal (or intra-abdominal) fascia which is of important clinical significance, forming an important landmark in surgery.
What is the linea alba?
: a median vertical tendinous line on the mammalian abdomen formed of fibers from the aponeuroses of the two rectus abdominis muscles and extending from the xiphoid process to the pubic symphysis — see adminiculum lineae albae.
What are the 5 major peritoneal folds?
The peritoneum folds into five key components (see below): the greater omentum, the lesser omentum, the falciform ligament, the small bowel mesentery, and the mesocolon. The folds extend over the viscera and also line the abdominal cavity.
Where is the Toldt’s fascia located in the body?
Toldt’s fascia, is a discrete layer of connective tissue containing lymphatic channels. It is found between the two mesothelial layers that separate the mesocolon from the underlying retroperitoneum. It was first described by Toldt, as a fascial plane which was formed by the fusion of the visceral peritoneum with the parietal peritoneum.
Where is the white line of Toldt located?
In Toldt’s Germany book, 11 he described a white line at the lateral reflection of posterior parietal peritoneum of abdomen over the mesentery of the ascending and descending colon, which has been widely cited in the contemporary textbook of colorectal surgery as “white line of Toldt” in eponym.
Is the Toldt fascia a surgical dissection plane?
Surgical dissection plane is readily developed within the Toldt fascia; however, any attempt to dissect along the interface between Toldt fascia and the overlying mesocolon or underlying retroperitoneum failed.
Where does Carl Toldt find the fascial plane?
It is found between the two mesothelial layers that separate the mesocolon from the underlying retroperitoneum. It was first described by the Austrian anatomist Carl Toldt (1840–1920) as a fascial plane formed by the fusion of the visceral peritoneum with the parietal peritoneum.