Patients suffering from adult acute lymphoblastic leukemia are acutely ill and present most commonly with fever, pallor, bleeding, lymphadenopathy, hepatosplenomegaly and presence of lymphoblasts in the peripheral blood and bone marrow. We describe a rare presentation of acute lymphoblastic leukemia, in a young adult male who had vague and minimal symptoms with mild splenomegaly. There was seve...

Three distinct immature T-cell acute lymphoblastic leukemia entities have been described including cases that express an early T-cell precursor immunophenotype or expression profile, immature MEF2C-dysregulated T-cell acute lymphoblastic leukemia cluster cases based on gene expression analysis (immature cluster) and cases that retain non-rearranged TRG@ loci. Early T-cell precursor acute lympho...

A murine monoclonal antibody (anti-BL7) was raised by immunization of BALB/c mice with a precursor B-cell line (Josh-7) which detects a heat-stable, nonimmunoprecipitable antigen. The expression of BL7 was investigated in peripheral blood and/or bone marrow leukemic cell suspensions stained by indirect immunofluorescence and analyzed by flow cytometry. Lymphoblasts from 43 of 43 cases of "null"...

background: acute lymphoblastic leukemia is a lymphoid malignancy, resulting from autonomous proliferation of monoclonal abnormal stem cell. the aim of this study was to evaluate the response rate and prognostic factor of adult patients suffering from acute lymphoblastic leukemia, who were treated with chemotherapy in south east of iran and demographic methods were used for this study.   method...

background: oral manifestations are frequently the initial signs of acute leukemia, prompting the patient to consult the dentist first. the gingival tissue is one site commonly involved either by leukemic infiltration or by inflammatory reactive hyperplasia, causing gingival enlargement. the gingival infiltration may also be present without gingival enlargement. early recognition of clinical fi...

INTRODUCTION Minimal residual disease is an important independent prognostic factor that can identify poor responders among patients with acute lymphoblastic leukemia. OBJECTIVE The aim of this study was to analyze minimal residual disease using immunoglobulin (Ig) and T-cell receptor (TCR) gene rearrangements by conventional polymerase chain reaction followed by homo-heteroduplex analysis an...

Recently, it has been shown that human B lymphocytes possess a polymorphic antigen system distinct from the HLA system present on both T and B lymphocytes (1-4). These B-cell antigens are also present on cultured lymphoblastoid lines (1, 3, 5, 6), acute lymphoblastic leukemia cells (7), and chronic lymphoblastic leukemia cells (1 and footnote 1). Earlier we described four distinct B-lymphocyte ...

The presence of terminal deoxynucleotidyl transferase (TdT) has been determined in neoplastic cells from 50 patients with non-hematologic tumors as well as neoplastic cells from 85 patients with hematologic malignancies. The results indicate that TdT is not present in cells from non-hematologic tumors, Hodgkin's lymphoma, B cell lymphoproliferative disorders, peripheral T cell neoplasms, reacti...

Background: The purpose of this study was to evaluate long-term changes in bone density profile among survivors of childhood acute lymphoblastic leukemia. Patients and Methods: This was a 5 year prospective study comprised of thirty-one survivors of childhood acute lymphoblastic leukemia with a mean age of 11.8 (4.6) years, who completed therapy at least 1 year previously (according to the ...

Bone marrow necrosis (BMN) in acute leukemia is a rare histopathological entity at the time of initial diagnosis. However, it represents an important diagnostic and prognostic challenge. Two cases of BMN are reported: a 44-year-old patient with B cell precursor (BCP) acute lymphoblastic leukemia (ALL) and a 27-year-old man with FAB-M5 acute myeloid leukemia (AML) who both presented with bone ma...