Hematologic malignancy is a risk factor for severe coronavirus disease 2019 (COVID-19) in adults; however, data specific to children with leukemia are limited. High-quality infectious adverse event from the ongoing Children's Oncology Group (COG) standard-risk B acute lymphoblastic leukemia/lymphoma (ALL/LLy) trial, AALL1731, were analyzed provide disease-specific estimate of SARS-CoV-2 infecti...

Two IgM monoclonal antibodies (MAb) with strong reactivity for granulocytes and to a lesser extent for lurkat cell lines were established by immunizing BALBI c mice with a histiocytic cell line (UY37). These two MAbs (designated as 6C9 and 4C4) reacted with blast cells of T-acute lymphoblastic leukemia (T-ALL) and acute myelogenous leukemia (AML) patients as well as leukemic cells from pat...

C hronic lymphocytic leukemia (CLL) is a frequent CD5 + B-cell neoplasia that involves peripheral blood, bone marrow, lymph nodes and other lym-phoid tissues. The median age of patients at diagnosis of CLL is around 70 years old and the prognosis is extremely variable. In spite of some advances in its therapy, CLL continues to be incurable. Due to this fact, and to the prognos-tic heterogeneity...

Clinically significant myocardial infiltration by blast cells is a rare occurrence in acute leukemia. Heart failure rate children with hemato-oncological diseases unknown. Here we report clinical case of an 8-year-old female patient B-cell lymphoblastic leukemia as well heart that resolved during specific therapy for the cancer. The patient's parents gave consent to use their child's data, incl...

Acute polyneuropathy in children with acute lymphoblastic leukemia is extremely rare, but its onset and association with Guillain-Barré syndrome presents a diagnostic challenge. We report a 5-year-old boy who presented with inability to walk during induction chemotherapy for acute lymphoblastic leukemia. Subsequently he developed painful penile erections, difficulty urinating and swallowing. Be...

1. Reiter A, Schrappe M, Luwdig WD, et al. Chemotherapy in 998 unselected childhood acute lymphoblastic leukemia patients. Results and conclusions of the multicenter trial ALL-BFM 86. Blood 1994; 84:3122-33. 2. Wan JH, Trainor KJ, Brisco MJ, Morley AA. Monoclonality in B-cell lymphoma detected in paraffin wax embedded using the polymerase chain reaction. J Clin Pathol 1990; 43:888-90. 3. Brisco...

Discrete diagnostic subtypes of T lymphoblastic leukemia/lymphoma (T-cell acute lymphoblastic leukemia/lymphoma, T-ALL) have historically not been widely recognized. Recently, a novel subset with distinctive immunophenotypic, molecular, and clinical features has been proposed. Termed early T-cell precursor acute lymphoblastic leukemia (ETP-ALL), these cases seem to correspond to a very early st...

BACKGROUND Allogeneic hematopoietic cell transplantation is a potentially curative treatment for patients with acute lymphoblastic leukemia. However, the majority of older adults with acute lymphoblastic leukemia are not candidates for myeloablative conditioning regimens. A non-myeloablative preparative regimen is a reasonable treatment option for this group. We sought to determine the outcome ...

two igm monoclonal antibodies (mab) with strong reactivity for granulocytes and to a lesser extent for lurkat cell lines were established by immunizing balbi c mice with a histiocytic cell line (uy37). these two mabs (designated as 6c9 and 4c4) reacted with blast cells of t-acute lymphoblastic leukemia (t-all) and acute myelogenous leukemia (aml) patients as well as leukemic cells from patients...