Items tagged “colon”

Fibrosing colonopathy a condition characterized by progressive submucosal fibrosis, particularly of the proximal colon. It is associated with high dose lipase supplementation used to treat exocrine insufficiency of the pancreas, such as in treatment for cystic fibrosis. Epidemiology It is more...

The colonic transit study is an older technique to estimate colonic transit time.  Terminology Various names are used for this type of study including shapes study, colon motility test, Sitz marker study and Transit-Pelletsmethod, and variations thereof.  Indications In constipation, it can ...

Diffuse colonic nodularity on barium enema or CT colonography has a range of possible etiologies: lymphoid hyperplasia (tend to be small and discrete) lymphoma (tend to be larger nodules and confluent) urticaria (closely spaced polygonal lesions, history is often helpful) pseudomembranous co...

A single contrast enema is a method of imaging the colon with fluoroscopy and is similar in concept to the double contrast barium enema. "Single contrast" refers to imaging with a positive contrast medium, either barium or water-soluble contrast, without the addition of air or CO2. Indications ...

​Mucous fistulas​ are a surgically-formed connection between bypassed colon and the skin surface. It is a type of colostomy, but instead of letting ingested contents pass out of the body, a mucous fistula allows release of colonic secretions, mucus, and gas so that they do not build up over time...

​Hartmann pouches​ are a technique in colonic surgery. After a segment of colon is resected, there are generally two options with regards to what to do with the two ends of the colon: both the upstream end of the colon (the end of the colon through which fecal contents would pass) and the downs...

Colonic leiomyomas are uncommon benign smooth muscle tumors that can mimic a more aggressive tumor on imaging, such as a GIST. They can be pedunculated, simulating a colonic polyp. Their characteristics are similar to leiomyomas in general. Radiographic features There are no specific findings ...

Nontoxic megacolon refers to colonic dilatation without mural abnormality and signs of colon toxicity. Although the definition of a megacolon has varied in the literature, most use the measurement of greater than 12 cm for the cecum, 8 cm for the ascending and transverse colon, and 6.5 cm for th...