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Bleeding from a blood vessel or structure in the retroperitoneal such as the aorta or inferior vena cava into the retroperitoneal space can lead to a retroperitoneal hemorrhage. Retroperitoneal fibrosis; Retroperitoneal lymph node dissection; It is also possible to have a neoplasm in this area, more commonly a metastasis; or very rarely a ...
The retroperitoneum or retroperitnium is an anatomical region that includes the peritoneum-covered organs and tissues that make up the posterior wall of the abdominal cavity and the pelvic space - which extends behind to the abdominal cavity. Definitions vary and can also can include the region of the wall of the pelvic basin.
As an embryo develops, the various abdominal organs grow into the abdominal cavity from structures in the abdominal wall. In this process they become enveloped in a layer of peritoneum. The growing organs "take their blood vessels with them" from the abdominal wall, and these blood vessels become covered by peritoneum, forming a mesentery. [6]
Peritoneal recesses (or peritoneal gutters) are the spaces formed by peritoneum draping over viscera. [1]The term refers mainly to four spaces in the abdominal cavity; the two paracolic gutters and the two paramesenteric gutters.
Bile, pus, or blood released from viscera anywhere along its length may run along the paracolic gutter, and collect in sites quite remote from the organ of origin. [2] In supine patients, infected fluid from the right iliac fossa may ascend in the paracolic gutter to enter the lesser sac.
The retropubic space is a preperitoneal space, located behind the transversalis fascia and in front of peritoneum. [1] Other names for the retropubic space are "Cave of Retzius" or "Retzius' space", named after the Swedish anatomist Anders Retzius (1796-1860). The space is a useful landmark in different gynecological and urological surgeries.
The rectovesical pouch is a space between the rectum and the bladder in men. [1] It lies above the seminal vesicles. [2] It is lined by peritoneum and at its base is the rectoprostatic fascia (Denonvillier's fascia). When a man is upright or supine, it is the lowest part of his peritoneal cavity. [3]
In humans, the kidneys are located high in the abdominal cavity, one on each side of the spine, and lie in a retroperitoneal position at a slightly oblique angle. [9] The asymmetry within the abdominal cavity, caused by the position of the liver , typically results in the right kidney being slightly lower and smaller than the left, and being ...