Sulfhemoglobinemia

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Sulfhemoglobinemia
Classification and external resources
ICD-10 D74.8
ICD-9 289.7
MedlinePlus 003371

Sulfhemoglobinemia is a rare condition in which there is excess sulfhemoglobin (SulfHb) in the blood. The pigment is a greenish derivative of hemoglobin which cannot be converted back to normal, functional hemoglobin. It causes cyanosis even at low blood levels.

Sulfhemoglobinemia is usually drug induced. Drugs associated with sulfhemoglobinemia include acetanilid, phenacetin, nitrates, trinitrotoluene and sulfur compounds (mainly sulphonamides). Another possible cause is occupational exposure to sulfur compounds. The condition generally resolves itself with erythrocyte (red blood cell) turnover, although blood transfusions can be necessary in extreme cases.

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