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Stroke-like encephalopathy following high-dose intravenous methotrexate in an adolescent with osteosarcoma: a case report
ABSTRACT Chronic lymphocytic leukemia is characterized by clonal proliferation and progressive accumulation of B-cell lymphocytes that typically express CD19+, CD5+ and CD23+. The lymphocytes usually infiltrate the bone marrow, peripheral blood, lymph nodes, and spleen. The diagnosis is established by immunophenotyping circulating B-lymphocytes, and prognosis is defined by two staging systems (Rai and Binet) established by physical examination and blood counts, as well as by several biological and genetic markers. In this update, we present the recommendations from the Brazilian Group of Chronic Lymphocytic Leukemia for th...
Source: Revista Brasileira de Hematologia e Hemoterapia - December 29, 2016 Category: Hematology Source Type: research

Investigating the Mechanisms of Methotrexate Neurotoxicity in Patients With Childhood Leukemia and Long-Term Survivors
Adverse neurological events are common (4-20%) during treatment for pediatric acute lymphoblastic leukaemia (ALL) and include seizures, stroke like syndrome and leukoencephalopathy. In addition, chronic neurotoxicity is emerging as a worrying late effect of treatment with long-term survivors experiencing decreased executive function, processing speed and memory function. Survivors are also at increased risk of experiencing learning difficulties, social withdrawal issues and inattention hyperactivity disorders.
Source: Clinical Lymphoma, Myeloma and Leukemia - September 1, 2017 Category: Hematology Authors: Victoria Forster, Jane Carr-Wilkinson, Deborah Tweddle, Sirintra Nakjang, Sanaa Choufani, Rosanna Weksberg, Frederik van Delft Source Type: research

Acute Neurotoxicity during ALL Therapy Is Associated with Treatment Intensity, Age and Female Sex - an Analysis of SAE Reports from the UKALL 2003 Trial
Discussion:This large study identifies treatment intensity as the main risk factor for developing acute neurotoxicity with female sex, age and CNS status having a significant modifying effect. CNS status may reflect increased intrathecal therapy given to non-CNS-1 patients. Females are more vulnerable to cranial radiotherapy induced neurotoxicity but this is the first report of female sex as a risk factor on contemporary chemotherapy treatment protocols. Reassuringly, the occurrence of acute neurotoxicity did not influence survival rates. These data provide an important benchmark for ongoing international deep phenotyping ...
Source: Blood - November 21, 2018 Category: Hematology Authors: Wahid, Q.-u.-A., Hamadeh, L., McGowan, S., Hough, R., Vora, A., Moorman, A. V., Halsey, C. Tags: 612. Acute Lymphoblastic Leukemia: Clinical Studies: Poster I Source Type: research