melanosis coli


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melanosis

 [mel″ah-no´sis]
1. disordered melanin production, with darkening of the skin; called also melanism.
2. a disorder of pigment metabolism.
melanosis co´li brown-black discoloration of the mucosa of the colon.
melanosis i´ridis (melanosis of the iris) abnormal pigmentation of the iris by infiltration of melanoblasts.

mel·a·no·sis co·'li

melanosis of the large intestinal mucosa due to accumulation of pigment of uncertain composition within macrophages in the lamina propria.

melanosis coli

[mel′ənō′sis]
an abnormal condition in which the mucous membrane of the colon is pigmented with melanin.
A benign condition characterised by segmental or global darkening of the colonic mucosa coupled with chronic constipation, due to prolonged abuse of cascara/sagrada-type laxatives

melanosis coli

Brown bowel syndrome A benign condition characterized by segmental or global darkening of the colonic mucosa coupled with chronic constipation, due to prolonged abuse of cascara/sagrada-type laxatives Clinical Abdominal pain, pancreatitis, biliary atresia, cirrhosis, peptic ulcer disease, mucoviscidosis. See Laxative.

mel·a·no·sis co·li

(mel'ă-nō'sis kō'lī)
Melanosis of the large intestinal mucosa due to accumulation of pigment of uncertain composition within macrophages in the lamina propria.

melanosis

1. a condition characterized by dark pigmentary deposits.
2. a disorder of pigment metabolism.

melanosis coli
brown-black discoloration of the mucosa of the colon.
congenital melanosis
patches of melanin in the capsule and stroma of the liver or lung in the neonate.
liver melanosis
see hepatic lipofuscinosis.