Blueberry muffin syndrome: cutaneous erythropoiesis and possible intrauterine viral infection.

A newborn baby with generalized "blueberry muffin" eruption and histologic evidence of dermal erythropoiesis is described. This case is unusual in that we could not identify any of the congenital viral infections usually associated with this syndrome. The clinical features of dermal erythropoiesis and dermal hematopoiesis are reviewed briefly.