Infectious mononucleosis followed by Burkitt's tumor.
D000293:Adolescent; D001943:Breast Neoplasms / Q000188:drug therapy; D002051:Burkitt Lymphoma / Q000209:etiology*; D003520:Cyclophosphamide / Q000627:therapeutic use; D005260:Female; D006564:Herpesviridae / Q000276:immunology*; D006801:Humans; D007244:Infectious Mononucleosis / Q000150:complications*; D010051:Ovarian Neoplasms / Q000188:drug therapy; D010190:Pancreatic Neoplasms / Q000188:drug therapy; D013274:Stomach Neoplasms / Q000188:drug therapy
D003520:Cyclophosphamide