Perinatal-lethal Gaucher disease presenting with blueberry muffin lesions.

"Blueberry muffin baby" is an expression applied to newborns displaying a generalized purpuric rash caused by dermal erythropoiesis. This presentation is typically associated with TORCH (toxoplasmosis, other, rubella, cytomegalovirus, and herpesvirus) complex infections. However, alternative diagnoses should be considered, including other infections, neoplastic diseases, congenital vascular lesions, and metabolic diseases.