title: A 10-year-old boy with progressive lymphadenopathy, fever, and rash.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000175:diagnosis; D001402:B-Lymphocytes / Q000276:immunology; D001706:Biopsy; D002648:Child; D003937:Diagnosis, Differential; D006133:Growth Substances / Q000172:deficiency; D006801:Humans; D006942:Hypergammaglobulinemia / Q000150:complications; D007119:Immunoblastic Lymphadenopathy / Q000150:complications / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology*; D015847:Interleukin-4; D008168:Lung / Q000473:pathology; D008198:Lymph Nodes / Q000473:pathology; D008222:Lymphokines / Q000172:deficiency; D008232:Lymphoproliferative Disorders / Q000175:diagnosis; D008297:Male; D008854:Microscopy, Electron; D011859:Radiography
chemical_list: D006133:Growth Substances; D008222:Lymphokines; D015847:Interleukin-4