Letterer-Siwe's disease.
D001706:Biopsy; D002675:Child, Preschool; D005234:Fatty Liver / Q000150:complications; D006615:Hip / Q000000981:diagnostic imaging; D006644:Histiocytes; D006646:Histiocytosis, Langerhans-Cell / Q000175:diagnosis*; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology; D008297:Male; D011859:Radiography; D012867:Skin / Q000473:pathology; D012886:Skull / Q000000981:diagnostic imaging; D013158:Splenic Diseases / Q000150:complications; D013997:Time Factors