Paramesenteric gutters

Diagram of the paramesenteric gutters.

The paramesenteric gutters are anatomical spaces in the abdominal cavity that are located on either side of the mesentery, which is the fold of tissue that attaches the intestines to the posterior abdominal wall. These gutters are important in the context of peritoneal fluid movement and the spread of intra-abdominal infections.

Anatomy

The paramesenteric gutters are divided into two main regions:

• Right Paramesenteric Gutter: This is located to the right of the mesentery and is also known as the right infracolic space. It is bounded by the ascending colon laterally and the mesentery of the small intestine medially.

• Left Paramesenteric Gutter: This is located to the left of the mesentery and is also known as the left infracolic space. It is bounded by the descending colon laterally and the mesentery of the small intestine medially.

Clinical Significance

The paramesenteric gutters play a crucial role in the movement of fluids within the peritoneal cavity. They allow for the passage of peritoneal fluid, which can carry infectious agents or malignant cells throughout the abdominal cavity. This can lead to the spread of conditions such as peritonitis or peritoneal carcinomatosis.

In cases of ascites, where there is an accumulation of fluid in the peritoneal cavity, the paramesenteric gutters can become pathways for the fluid to move and collect in dependent areas of the abdomen.

Related Pages

• Peritoneum
• Mesentery
• Abdominal cavity
• Peritonitis
• Ascites