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Melanosis coli

Melanosis coli (MC) is a non-inflammatory bowel disease characterized by melanosis of colonic mucosa. Its essence is that macrophages in the lamina propria of colonic mucosa contain a large amount of lipofuscin. In the past, there were more reports abroad and less reports at home. In recent years, melanosis coli has shown an obvious upward trend in China.



Colonic vascular malformation

Colonic fistula

Pseudomembranous enteritis

Lipoma of colon

Volvulus of colon

Calculous cholecystitis

Colorectal injury

Connective tissue enteritis

Spastic intestinal obstruction

tuberculous mesenteric lymphadenitis


Alcoholic liver disease

Nodular fat necrosis

Toxicosis of local Anaesthetic

nickel car-bonyI poisoning

Giant hypertrophic gastritis


Rapidly progressive glomerulonephritis

Acute rheumatic fever renal damage

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