Histiocytosis. Report of an unusual case.
D000293:Adolescent; D001172:Arthritis, Rheumatoid / Q000150:complications*; D002648:Child; D002675:Child, Preschool; D006529:Hepatomegaly / Q000150:complications*; D006644:Histiocytes; D006801:Humans; D008199:Lymphadenitis / Q000150:complications*; D008297:Male; D009333:Neck; D013733:Testicular Diseases / Q000150:complications*