gastroenterology videos
Melanosis Coli (2 of 5)
Anthranoid-containing herbal laxatives damage epithelial cells, leading to changes in absorption,secretion and motility. They can induce cell loss, shortening of mucosal crypts and increased cell...
Melanosis Coli (1 of 5)
The presence of identical pigment in macrophages of pericolonic lymph nodes has been reported. This case implies that the melanosis pigment-laden macrophages formed in the lamina propria of the colon...
Melanosis Coli (2 of 2)
Melanosis coli is a darkening of the colonic mucosa caused by the accumulation of lipofuscin particles within the macrophages of the lamina propria of the colonic mucosa as a result of long term exposure...
Melanosis Coli (1 of 2)
This is the photograph of the colon, and there is an extremely dark appearance to the wall of the colon. This is seen in patients who have taken laxatives over many years and the pigment from the laxative...
Ulcerated Internal Hemorrhoid (1 of 4)
This is the case of a 79 year-old male, who had several episodes of hematemesis, the hemoglobin drop until 5.9 Gr./dl, the colonoscopy was negative.
Prolapsed Hemorrhoid (3 of 4)
Protrusion can occur with both internal and external varicosities; while some may regress spontaneously, others may require manual replacement. Other symptoms may include steady aching in the affected...
Prolapsed Hemorrhoid (2 of 4)
Stage III - Internal hemorrhoid that Prolapsed internal hemorrhoids extend into the anal canal or through the anus, outside the anal sphincter; with these, pain usually ensues. (If the internal hemorrhoid...
Prolapsed Hemorrhoid (1 of 4)
Stage III - Internal hemorrhoids that bleed and prolapse with straining and require manual effort for replacement into the anal canal.
Users
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Gottumukkala Raju
Professor
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Ahmad Hormati
Professor
Channels
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Gastroenterology Atlas
medical institution
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EUS - ENDO
commercial institution
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SAGES - Society of American Gastrointestinal and Endoscopic Surgeons
medical institution
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American Association for Primary Care Endoscopy
medical institution
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Colonscopy Quiz by Dr. Raju
medical institution
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