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Whole body computed tomography scans (i.e. CT scans) frequently find enlarged mesenteric lymph nodes (i.e. lymph nodes attached to the intestinal mesentery) and may show evidence of liver, spleen, and/or other organ involvement in cases which are advancing or have advanced to a malignant lymphoma.
The ileocolic lymph nodes, from ten to twenty in number, form a chain around the ileocolic artery, but tend to subdivide into two groups, one near the duodenum and the other on the lower part of the trunk of the artery. Where the vessel divides into its terminal branches the chain is broken up into several groups:
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 ...
Inferior mesenteric lymph nodes: Identifiers; Latin: ... [edit on Wikidata] The pararectal lymph nodes are lymph nodes that are in contact with the muscular coat of ...
CT scan; MRI scan; ultrasound Lymphadenopathy or adenopathy is a disease of the lymph nodes , in which they are abnormal in size or consistency. Lymphadenopathy of an inflammatory type (the most common type) is lymphadenitis , [ 1 ] producing swollen or enlarged lymph nodes.
However, it is not specific and can be found in other conditions such as mesenteric oedema, lymphedema, haemorrhage, and presence of neoplastic and inflammatory cells must be excluded. Mesenteric lymph nodes are rarely larger than 10 mm in sclerosing mesenteritis. Larger lymph nodes should prompt further investigations with PET scan or biopsy. [7]
The inferior mesenteric lymph nodes have a subgroup of pararectal lymph nodes. The preaortic lymph nodes receive a few vessels from the lateral aortic lymph nodes, but their principal afferents are derived from the organs supplied by the three arteries with which they are associated–the celiac, superior and inferior mesenteric arteries. Some ...
Colorectal cancer may metastasise to the inferior mesenteric lymph nodes. For this reason, the inferior mesenteric artery may be removed in people with lymph node-positive cancer. [3] This has been proposed since at least 1908, by surgeon William Ernest Miles. [4]