Retroflexions.com The Rectal Bleeding Rainbow Melena Melena an overview ScienceDirect Topics Melena (Black Stool): Causes & Treatment
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melenic or melanotic stools GASTROINTESTINAL HEMORRHAGE (2): Melena. Melena, the passage of black, tarry stools, usually implies blood loss greater than 500 ml originating anywhere between the oropharynx and the right hemicolon. Melena occurs most often,