Title
Hypoplastic acute leukemia : description of eight cases and search for haematopoietic inhibiting activity Hypoplastic acute leukemia : description of eight cases and search for haematopoietic inhibiting activity
Author
Faculty/Department
Faculty of Medicine and Health Sciences
Publication type
article
Publication
Berlin ,
Subject
Human medicine
Source (journal)
Annals of hematology. - Berlin
Volume/pages
65(1992) :6 , p. 247-252
ISSN
0939-5555
ISI
A1992KD38800002
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Hypoplastic acute leukemia (HAL) is characterized by pancytopenia and by hypocellularity of the bone marrow. The marrow contains equal to or more than 30% myeloblasts. Absence of tissue infiltrates and/or tumor masses is mandatory. Eight patients are described here. They do not fit into the FAB classification for either acute nonlymphocytic leukemia (ANLL) or myelodysplastic syndrome (MDS), except for one patient who subsequently proved to have a chronic myelomonocytic leukemia (CMML). The median age is 65 years. Two patients, including the CMML patient, are alive, 22 and 6 months from diagnosis. Six patients have died. The median survival is 8 months. Normal bone marrow cells cultured either with HAL sera or with HAL peripheral blood mononuclear cells as feeders and exogenous GM-CSF yielded subnormal CFU-GM counts. This might indicate inhibitory activity of HAL serum and defective stimulatory activity of HAL peripheral blood mononuclear cells.
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