enterogenous cyanosis

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An apparent cyanosis caused by the absorption of nitrites or other toxic materials (including acetanilide, phenacetin, acetaminophen, and dapsone) from the intestine with the formation of methaemoglobin or sulphaemoglobin. High levels of methaemoglobin or sulphaemoglobin respectively can arise through a rare congenital deficiency in NADH-cytochrome b5 reductase or an unstable haemoglobin variant.

Subjects: Medicine and Health.

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