colonoscopy
Cryptosporidiosis of Colon (2 of 3)
The rectal mucosa displays some degree of hyperplasia and a cluster of brownish maculas. Cryptosporidium, a protozoan member of the family of coccidia that also includes Pneumocystis carinii and...
Cryptosporidiosis of Colon (1 of 3)
A 65 year-old man with a 6 month diarrhea syndrome infected with HIV. The mucosa of the Sigmoid Colon and rectum presented with hyperplasia and with some clusters of brown maculas. Biopsies showed...
Unspecific Colitis due to Shigellosis (7 of 7)
“Colitis due to Shigellosis”. The rectum and anus in retroflexed image, the image and the video display edema and ulcerations. Humans are the only natural host and the organism primarily affects...
Unspecific Colitis due to Shigellosis (6 of 7)
Image View of Colitis due to Shigellosis. Anus and rectum. Findings: Endoscopy reveals friable, hyperemic mucosa that involves that rectum and sigmoid colon in a confluent pattern very similar to...
Unspecific Colitis due to Shigellosis (5 of 7)
“Colitis due to Shigellosis”. Several tiny ulcers (aphtas). In chronic bacillary dysentery, there is usually extensive scarring and fibrosis of the colon, indolent ulceration, and a continued subacute...
Unspecific Colitis due to Shigellosis (4 of 7)
Endoscopic View of Colitis due to Shigellosis Pathologically, shigellosis is characterized by an acute diffuse inflammation of the colon with initial hyperemia of the mucosa, followed by edema, hemorrhage,...
Unspecific Colitis due to Shigellosis (3 of 7)
Ascending colon, where we found multiple ulcers of different sizes, edema and exudate. Those macroscopic images are ruling out Crohn´s disease and amebic colitis. Shigellosis is a major diarrheal...
Unspecific Colitis due to Shigellosis (2 of 7)
“Colitis due to Shigellosis”. The entire colon was affected. (pancolitis) The illness usually starts abruptly, with diarrhea, lower abdominal cramps, and tenesmus. The diarrheal stool often is mixed...
Unspecific Colitis due to Shigellosis (1 of 7)
A 58 year-old female that 22 days previously was hospitalized, due to acute diarrhea with bloody and mucoid feces. Colonoscopy revealed mucosal inflammation with erythema (redness), edema (swelling),...
Ischemic Colitis
Later endoscopic finding in a mild case of colonic ischemia. Note the more pronounced submucosal hemorrhage as well as the presence of pseudomembranes.
Severe case of Ischemic Colitis (11 of 19)
Ischemic colitis occurs as the result of a compromise in intestinal blood flow that can produce a spectrum of injury from transient self-limited ischemia to fulminant ischemia or transmural infarction....
Severe case of Ischemic Colitis (10 of 19)
Complications of ischemic colitis include chronic ischemic colitis, gangrene of the bowel with resulting perforation and peritonitis, and stricture, which usually develops 3 to 4 weeks after the acute...
Severe case of Ischemic Colitis (9 of 19)
Most patients will present with the acute onset of a mild, crampy abdominal pain and tenderness over the affected bowel. An urge to defecate is common. Within 24 hours, there is usually passage of...
Severe case of Ischemic Colitis (8 of 19)
Ischemic colitis was first described in relation to vascular surgeries and continues to be a potential complication of aortic or cardiac bypass surgery. Aortic surgery is associated with a 1% to 7%...
Severe case of Ischemic Colitis (7 of 19)
Although our patient presented the ischemic colitis in the right colon ischemic colitis, it is reported that the most common sites of involvement are the splenic flexure and the sigmoid colon. The...
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