Qu'est-ce que le méléna ?
Qu'est-ce que le méléna ?
Le méléna est une forme d'hémorragie du système digestif. Il s'agit alors de l'évacuation de sang noir, par l'anus. Ce type d'hémorragie digestive se traduit par une expulsion de sang, provenant du système digestif : tube digestif, voies biliaires ou encore depuis le pancréas.
Comment diagnostiquer un méléna ?
Le méléna se caractérise principalement par des selles noires, goudronneuses et malodorantes. À cela peuvent parfois venir s'ajouter les symptômes de l'affection responsable du saignement. Si vous vomissez du sang avant de présenter un méléna, le saignement se situe dans l'œsophage ou l'estomac.
What is Melena and what causes it?
- What causes melena? Melena often results from damage to the upper GI tract lining, swollen blood vessels, or bleeding disorders. Peptic ulcer disease, which is characterized by painful ulcers or sores that develop in the stomach or small intestine, can result in melena. Peptic ulcer disease can be caused by:
What does me·le·na mean?
- [mĕ-le´nah] darkening of the feces by blood pigments. Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved. me·le·na
What is another word for melanena?
- Synonym(s): melanorrhagia, melanorrhea [G. melaina,fem. of melas,black] Farlex Partner Medical Dictionary © Farlex 2012 melena (mə-lē′nə) n. The passage of black, tarry stools composed largely of blood that has been acted on by gastric juices, indicative of bleeding in the upper digestive tract.
What is the difference between hematochezia and Melena?
- Melena should not be confused with hematochezia, which refers to fresh blood in the stools that leads to maroon or red-colored stools. This blood typically comes from the lower GI tract, most often from rectal bleeding, such as hemorrhoids. What does melena look like? Melena appears as black, tar-like, sticky stools.
