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A stapler is typically used to cut across the colon to prevent spillage of intestinal contents into the peritoneal cavity. [10] Colectomy as treatment for colorectal cancer also includes lymphadenectomy, or removal of surrounding lymph nodes, which may be done for staging of the cancer or removal of cancerous nodes. [11]
[2] [5] Venous drainage mostly parallels that of the arterial supply; [5] [2] that is, it begins as a network of smaller veins in the adventitia; with the renal veins draining the upper ureters, and the vesicular and gonadal veins draining the lower ureters. [1] Lymphatic drainage depends on the position of lymphatic vessels in the ureter. [1]
The inferior mesenteric lymph nodes consist of: (a) small glands on the branches of the left colic and sigmoid arteries (b) a group in the sigmoid mesocolon , around the superior hemorrhoidal artery
The periaortic lymph nodes (also known as lumbar) are a group of lymph nodes that lie in front of the lumbar vertebrae near the aorta. These lymph nodes receive drainage from the gastrointestinal tract and the abdominal organs. The periaortic lymph nodes are different from the paraaortic lymph nodes. The periaortic group is the general group ...
After surgery, drains can be placed to remove blood, lymph, or other fluids that accumulate in the wound bed. This helps to promote wound healing and allows healthcare providers to monitor the wound for any signs of internal infection or damage to surgically repaired structures.
Lymphatics of colon. Details; System: Lymphatic system: Drains to: ... The pararectal lymph nodes are lymph nodes that are in contact with the muscular coat of the ...
The colon is then mobilized from the retroperitoneum. Care is taken to avoid injury to the ureters and duodenum. The surgery then follows the same steps as small bowel resection. However, due to the colon's placement in the retroperitoneum, more dissection is often required to allow for tension free anastomosis. [5] [6]
The widespread use of mechanical suturing devices (linear and circular staplers) changed the face of gastrointestinal surgery. A suture-free method for anastomosis of the colon to colon or rectum has been developed. [1] [2] Urinary tract: Ureters, urinary bladder, urethra.