The child with lymphadenopathy.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001172:Arthritis, Rheumatoid; D001424:Bacterial Infections / Q000150:complications; D001706:Biopsy; D002648:Child; D002675:Child, Preschool; D005260:Female; D005776:Gaucher Disease / Q000150:complications; D006529:Hepatomegaly / Q000209:etiology; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007244:Infectious Mononucleosis / Q000150:complications; D007938:Leukemia / Q000150:complications; D015470:Leukemia, Myeloid, Acute / Q000150:complications; D008180:Lupus Erythematosus, Systemic; D008198:Lymph Nodes; D008206:Lymphatic Diseases / Q000209:etiology*; D008482:Mediastinum; D009333:Neck; D009447:Neuroblastoma / Q000150:complications; D009542:Niemann-Pick Diseases / Q000150:complications; D011247:Pregnancy; D013163:Splenomegaly / Q000209:etiology