title: Therapy-related erythroleukemia caused by the administration of UFT and mitomycin C in a patient with colon cancer.
abstract: A 54-year-old man with colon cancer underwent hemicolectomy. He received postoperative adjuvant chemotherapy with UFT (tegafur/uracil at a 1 : 4 molar ratio) and mitomycin C (MMC) for 3 years. Three years and 4 months after the start of chemotherapy, pancytopenia was noted. Bone marrow aspiration smear demonstrated an increased number of immature erythroblasts, including megaloblasts and myeloblasts. Chromosomal analysis demonstrated structural and numerical abnormalities of 5, 7, 15, and 17. Therapy-related erythroleukemia, acute myeloid leukemia (AML), M6, was diagnosed. The disease progressed after 5 months, and the patient was received chemotherapy with cytosine arabinoside, aclacinomycin, and granulocyte colony-stimulating factor (CAG), and showed a partial hematological response. Careful monitoring for the generation of therapy-related leukemia is needed when UFT and MMC are used for postoperative adjuvant chemotherapy for colorectal cancer.
authors.affiliation: Division of Hematology, Department of Medicine, Yamaguchi Prefecture Central Hospital, Hofu 747-8511, Japan. kenji.shinohara@mb8.seikyou.ne.jp
authors.forename: Yoshitaka
authors.initials: Y
authors.lastname: Nakamori
authors.forename: Mutsuko
authors.initials: M
authors.lastname: Miyazaki
authors.forename: Takayuki
authors.initials: T
authors.lastname: Tominaga
authors.forename: Akihiko
authors.initials: A
authors.lastname: Taguchi
authors.forename: Kenji
authors.initials: K
authors.lastname: Shinohara
mesh_terms: D000230:Adenocarcinoma / Q000188:drug therapy*; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000008:administration & dosage* / Q000009:adverse effects*; D002869:Chromosome Aberrations / Q000139:chemically induced; D002884:Chromosomes, Human, Pair 15 / Q000187:drug effects; D002886:Chromosomes, Human, Pair 17 / Q000187:drug effects; D002895:Chromosomes, Human, Pair 5 / Q000187:drug effects; D002897:Chromosomes, Human, Pair 7 / Q000187:drug effects; D003110:Colonic Neoplasms / Q000150:complications / Q000188:drug therapy*; D006801:Humans; D004915:Leukemia, Erythroblastic, Acute / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D016685:Mitomycin / Q000008:administration & dosage* / Q000009:adverse effects*; D016609:Neoplasms, Second Primary; D005641:Tegafur / Q000008:administration & dosage* / Q000009:adverse effects*; D017211:Treatment Failure; D014498:Uracil / Q000008:administration & dosage* / Q000009:adverse effects*
chemical_list: D005641:Tegafur; D016685:Mitomycin; D014498:Uracil