melaena
Noun | 1. | melaena - abnormally dark tarry feces containing blood (usually from gastrointestinal bleeding) |
单词 | melaena | |||
释义 | melaena
melaename·le·na(mĕ-lē'nă)Compare: hematochezia Synonym(s): melaena. melaenaBlackening of the stools by altered blood that has been released into the bowel from bleeding in the OESOPHAGUS, STOMACH, or DUODENUM. Melaena implies loss of at least 60 ml of blood and is an important warning sign that should never be ignored.me·le·na(mĕ-lē'nă)melaena
Synonyms for melaena
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