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Pediatr Hematol Oncol. 2010 Feb;27(1):46-52. doi: 10.3109/08880010903341904.

Subacute methotrexate neurotoxicity and cerebral venous sinus thrombosis in a 12-year-old with acute lymphoblastic leukemia and methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism: homocysteine-mediated methotrexate neurotoxicity via direct endothelial injury.

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  • 1Division of Pediatric Hematology-Oncology, Children's Hospital at Montefiore, Bronx, New York 10467, USA. krismd03@hotmail.com

Abstract

From as early as the 1970s methotrexate has been associated with disseminated necrotizing leukoencephalopathy and other neurotoxic sequelae. Yet, a clear mechanism for methotrexate-induced neurotoxicity has not been established. The authors describe the case of a 12-year-old male with acute lymphoblastic leukemia and a homozygous methylenetetrahydrofolate reductase C677T mutation, who developed subacute methotrexate-induced toxicity and cerebral venous thrombosis after receiving intrathecal methotrexate. The role of homocysteine as a possible mediator in methotrexate-induced neurotoxicity via direct endothelial injury is discussed.

PMID:
20121554
[PubMed - indexed for MEDLINE]
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