Cytogenetic studies were made on 160 patients with acute nonlymphocytic leukemia (ANLL) between 1963 and 1979, of whom 115 had acute myelocytic leukemia with 67 patients showing aneuploidy (58.3%). Among these, 24 patients were found to have similar chromosome alterations that appeared to involve specifically chromosomes 8 and 21. Banding studies on at least 7 of these patients confirmed the pr...

Thirteen previously untreated patients aged 70 and above with acute nonlymphocytic leukemia were treated with aclarubicin (ACR) alone. Among 10 cases (3, acute myelocytic leukemia; 4, acute myelomonocytic leukemia; 2, acute monocytic leukemia; and one, acute erythroleukemia) in which an evaluation was possible, 5 cases (3, acute myelomonocytic leukemia; and 2, acute monocytic leukemia) obtained...

Second hematologic malignancies occur rarely in patients previously treated for leukemia. This report describes a patient with acute lymphoblastic leukemia who remained in complete remission for 5 yr and then developed chronic myelocytic leukemia (CML). The original lymphoblasts were associated with a partial deletion of chromosome 21, while CML was associated with a classic Philadelphia marker...

A standard series of five intravenous injections of N-nitroso-N-methylurea (NMU) elicited selective patterns of neoplasms in male rats of the Sprague-Dawley strain; the neoplastic pattern was related to the age of the recipients. When the injections of NMU were started in weanling male rats, a specific triad of neoplasms developed that consisted of mammary carcinoma, primary myelocytic leukemia...

‘ iI ETHYL-GLYOXAL-BIS-GUANYLHYDRAZONE (methyl GAG) is a I VI new chemotherapeutic agent synthesized and reported in 1958 to have anti-tumor activity against mouse leukemia L1210.2 It has also been shown to be active against acute myelocytic leukemia in man. This compound has induced complete hematologic remission in 11 of 20 consecutive patients with acute myelocytic leukemia treated at the Na...

Granuloma annulare is a granulomatous disorder of the dermis and subcutaneous tissue, with different clinical types. Generalized granuloma annulare is a rarely encountered clinical entity. We describe a 60-year-old woman with a 4-month history of generalized annular lesions. She had a history of myelocytic leukemia and chronic hepatitis B virus infection. To date, both acute myelocytic leukemia...

One hundred seventy-nine patients with acute nonlymphoblastic leukemia in first remission (n = 75), chronic myelocytic leukemia in chronic or accelerated phase (n = 48) or leukemia in advanced stage (n = 56) were given HLA-identical marrow grafts and randomized to receive methotrexate or cyclosporine for prevention of graft-v-host disease (GVHD). The current report updates the three prospective...

Phenotypic switch between any leukemia subtypes is of concern to a treating physician and more so, in acute myelocytic leukemia (AML) as the mechanisms for switch and subsequent chemotherapy regimen to be used remain unclear. AML-non-M3 from AML-M3 subtype needs special mention as this has been unheard off.

The isoenzyme profiles of a-mannosidase and ,8-galactosidase in leukemic cells were examined with DEAE-Sephadex chromatography. A clear difference of these constituent isoenzymes was found between normal lymphocytes and granulocytes. In leukemic cells, the components of a-mannosidase eluting early (fraction I to III) from the chromatography were specific for myelogenous leukemia. No case of acu...