The black, tarry, foul-smelling FECES that contain degraded blood.
Melenas
D006396
Hematemesis
Vomiting of blood that is either fresh bright red, or older "coffee-ground" in character. It generally indicates bleeding of the UPPER GASTROINTESTINAL TRACT.
Hematemeses
D006471
Gastrointestinal Hemorrhage
Bleeding in any segment of the GASTROINTESTINAL TRACT from ESOPHAGUS to RECTUM.
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013679
Technology, Radiologic
The application of scientific knowledge or technology to the field of radiology. The applications center mostly around x-ray or radioisotopes for diagnostic and therapeutic purposes but the technological applications of any radiation or radiologic procedure is within the scope of radiologic technology.