title: Acute lymphoblastic leukaemia in adults: immunological subtypes and clinical features at presentation.
abstract: In 91 of 106 adult patients with acute lymphoblastic leukemia (ALL) enrolled in the treatment protocol ALL HOVON-5 between May 1988 and October 1991, the immunophenotype of the leukemia was determined and correlated with clinical characteristics at presentation. The immunological marker analysis was performed in ten laboratories, all members of the Dutch Study Group on Immunophenotyping of Leukemias and Lymphomas (SI-HON). Undifferentiated blasts were found in four patients, 67 had B-lineage ALL, 18 had T-lineage ALL, and two had biphenotypic ALL. The age of T-lineage ALL patients was lower (mean 29.3) than that of B-lineage ALL patients (mean 35.5). Tumor mass, as expressed by leukocyte count, organomegaly, and LDH, was more pronounced in T-lineage ALL. Hemoglobin and platelet count was similar in all (sub)types. CD34 was expressed in 58% of the leukemias, but most frequently in the common B-ALL (70%). Thirteen percent of the leukemias expressed one or more markers not associated with their lineage. In this prospective study immunological data were not evaluable for 15 patients. On four of them data were not available because of dry tap, for six patients the typing was technically insufficient, and for four patients the results were unclassifiable; with one patient the marker analysis was not performed.
authors.affiliation: Department of Hematology, Dr. Daniel den Hoed Cancer Center, Rotterdam, The Netherlands.
authors.forename: M B
authors.initials: MB
authors.lastname: van't Veer
authors.forename: W L
authors.initials: WL
authors.lastname: van Putten
authors.forename: L F
authors.initials: LF
authors.lastname: Verdonck
authors.forename: G J
authors.initials: GJ
authors.lastname: Ossenkoppele
authors.forename: B
authors.initials: B
authors.lastname: Löwenberg
authors.forename: J C
authors.initials: JC
authors.lastname: Kluin-Nelemans
authors.forename: P W
authors.initials: PW
authors.lastname: Wijermans
authors.forename: H C
authors.initials: HC
authors.lastname: Schouten
authors.forename: W
authors.initials: W
authors.lastname: Sizoo
authors.forename: A W
authors.initials: AW
authors.lastname: Dekker
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D015703:Antigens, CD / Q000032:analysis; D018952:Antigens, CD34; D015214:Antigens, Differentiation, Myelomonocytic / Q000032:analysis; D002051:Burkitt Lymphoma / Q000201:enzymology / Q000276:immunology / Q000473:pathology; D018826:CD13 Antigens; D002490:Central Nervous System / Q000473:pathology; D005260:Female; D006454:Hemoglobins / Q000032:analysis; D006529:Hepatomegaly / Q000473:pathology; D006801:Humans; D016130:Immunophenotyping; D007770:L-Lactate Dehydrogenase / Q000032:analysis; D015459:Leukemia-Lymphoma, Adult T-Cell / Q000201:enzymology / Q000276:immunology / Q000473:pathology; D007958:Leukocyte Count; D008198:Lymph Nodes / Q000473:pathology; D008297:Male; D008875:Middle Aged; D010976:Platelet Count; D054198:Precursor Cell Lymphoblastic Leukemia-Lymphoma / Q000453:epidemiology* / Q000276:immunology*; D011446:Prospective Studies; D063268:Sialic Acid Binding Ig-like Lectin 3; D013163:Splenomegaly / Q000473:pathology
chemical_list: D015703:Antigens, CD; D018952:Antigens, CD34; D015214:Antigens, Differentiation, Myelomonocytic; C571163:CD33 protein, human; D006454:Hemoglobins; D063268:Sialic Acid Binding Ig-like Lectin 3; D007770:L-Lactate Dehydrogenase; D018826:CD13 Antigens