title: Differential diagnosis of unusual skin diseases in infants.
abstract: There are a number of relatively unique clinical skin diseases that may develop on the buttocks of infants. These include iatrogenic skin diseases caused by external medicine; skin tumors caused by methylrosaniline chloride (Pyoktanin); atrophy of the skin due to steroidal liniments; nevus and tumor diseases, such as nevoxanthoendothelioma and Letterer-Siwe disease. Finally, there is chronic granulomatous disease. These unusual cases are reviewed and their differential diagnoses discussed.
mesh_terms: D003937:Diagnosis, Differential; D003963:Diaper Rash / Q000175:diagnosis* / Q000209:etiology; D006105:Granulomatous Disease, Chronic / Q000175:diagnosis; D006562:Herpes Zoster / Q000175:diagnosis; D006646:Histiocytosis, Langerhans-Cell / Q000175:diagnosis; D006801:Humans; D007223:Infant; D007224:Infant Care; D007231:Infant, Newborn; D008297:Male; D012871:Skin Diseases / Q000175:diagnosis*; D014005:Tinea / Q000175:diagnosis; D014972:Xanthogranuloma, Juvenile / Q000175:diagnosis