blueberry muffin baby
an infant with purple skin lesions the appearance of which has been compared with that with a blueberry muffin. Lesions are caused by dermal erythropoiesis and are seen in congenital infections such as cytomegalovirus, toxoplasmosis, or rubella. The infection interferes with the normal production of blood cells in the bone marrow.
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Examples: glitazone, GI cocktail, etc.