melanotic or melena refers to MELANIN not #medicine #doctor #humor #doctorsofinstagram #medreels #melanin إستشاري - melena is overwhelmingly
melena is overwhelmingly associated with UGIB rather than with lower GI bleeding (LGIB), which is distal to the duodenojejunal junction at the ligament of Treitz. Melena of less than 24 hour Primary and metastatic melanoma of the GI tract: clinical presentation, endoscopic findings, and patient outcomes Surgical Endoscopy Springer Nature Link Hematochezia vs melena: Comparing symptoms, causes, and treatment Acute upper gastrointestinal bleeding in a patient with malignant melanoma BMJ Case Reports Lentigo maligna and lentigo maligna melanoma Melena is defined as: A) Bright red blood per rectum B) Black, tarry stool due to digested blood C) Yellow fatty stool D) Green mucus stool
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