PHENYTOIN-ASSOCIATED LYMPHOADENOPATHY MIMICKING A PERIPHERAL T-CELL LYMPHOMA

We report a case of phenytoin-induced pseudolymphoma in a 28-year-old male with a history of autism and seizure disorder.  The patient presented with bilateral cervical lymphadenopathy that was shown to be moderately to markedly FDG-avid on a whole body PET/CT scan.  Flow cytometry analysis of perip...

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Main Authors: Mark E. Johns, Lynn C. Moscinski, Lubomir Sokol
Format: Article
Language:English
Published: PAGEPress Publications 2010-09-01
Series:Mediterranean Journal of Hematology and Infectious Diseases
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Online Access:http://www.mjhid.org/index.php/mjhid/article/view/182
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author Mark E. Johns
Lynn C. Moscinski
Lubomir Sokol
author_facet Mark E. Johns
Lynn C. Moscinski
Lubomir Sokol
author_sort Mark E. Johns
collection DOAJ
description We report a case of phenytoin-induced pseudolymphoma in a 28-year-old male with a history of autism and seizure disorder.  The patient presented with bilateral cervical lymphadenopathy that was shown to be moderately to markedly FDG-avid on a whole body PET/CT scan.  Flow cytometry analysis of peripheral blood and bone marrow mononuclear cells detected identical T cell population with aberrant immunophenotype.  Additionally, a TCR beta gene was found to be clonally rearranged in both peripheral blood and bone marrow supporting a clonal origin of atypical T cells. However, no such clonal population of T-cells could be detected in a pathologic specimen obtained from an excisional biopsy of one of the patient’s cervical lymph nodes. After discontinuing the patient’s phenytoin, his lymphadenopathy has nearly completely resolved and circulation clonal T cell population disappeared with 12 months of follow-up.
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issn 2035-3006
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publishDate 2010-09-01
publisher PAGEPress Publications
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series Mediterranean Journal of Hematology and Infectious Diseases
spelling doaj-art-0544ac366e4b4fabbcc1fa9eaaef621f2025-08-20T01:47:48ZengPAGEPress PublicationsMediterranean Journal of Hematology and Infectious Diseases2035-30062010-09-0122e2010028e201002810.4084/mjhid.2010.02875PHENYTOIN-ASSOCIATED LYMPHOADENOPATHY MIMICKING A PERIPHERAL T-CELL LYMPHOMAMark E. JohnsLynn C. MoscinskiLubomir SokolWe report a case of phenytoin-induced pseudolymphoma in a 28-year-old male with a history of autism and seizure disorder.  The patient presented with bilateral cervical lymphadenopathy that was shown to be moderately to markedly FDG-avid on a whole body PET/CT scan.  Flow cytometry analysis of peripheral blood and bone marrow mononuclear cells detected identical T cell population with aberrant immunophenotype.  Additionally, a TCR beta gene was found to be clonally rearranged in both peripheral blood and bone marrow supporting a clonal origin of atypical T cells. However, no such clonal population of T-cells could be detected in a pathologic specimen obtained from an excisional biopsy of one of the patient’s cervical lymph nodes. After discontinuing the patient’s phenytoin, his lymphadenopathy has nearly completely resolved and circulation clonal T cell population disappeared with 12 months of follow-up.http://www.mjhid.org/index.php/mjhid/article/view/182Lymphoma, psedolymphoma, Phenitoine
spellingShingle Mark E. Johns
Lynn C. Moscinski
Lubomir Sokol
PHENYTOIN-ASSOCIATED LYMPHOADENOPATHY MIMICKING A PERIPHERAL T-CELL LYMPHOMA
Mediterranean Journal of Hematology and Infectious Diseases
Lymphoma, psedolymphoma, Phenitoine
title PHENYTOIN-ASSOCIATED LYMPHOADENOPATHY MIMICKING A PERIPHERAL T-CELL LYMPHOMA
title_full PHENYTOIN-ASSOCIATED LYMPHOADENOPATHY MIMICKING A PERIPHERAL T-CELL LYMPHOMA
title_fullStr PHENYTOIN-ASSOCIATED LYMPHOADENOPATHY MIMICKING A PERIPHERAL T-CELL LYMPHOMA
title_full_unstemmed PHENYTOIN-ASSOCIATED LYMPHOADENOPATHY MIMICKING A PERIPHERAL T-CELL LYMPHOMA
title_short PHENYTOIN-ASSOCIATED LYMPHOADENOPATHY MIMICKING A PERIPHERAL T-CELL LYMPHOMA
title_sort phenytoin associated lymphoadenopathy mimicking a peripheral t cell lymphoma
topic Lymphoma, psedolymphoma, Phenitoine
url http://www.mjhid.org/index.php/mjhid/article/view/182
work_keys_str_mv AT markejohns phenytoinassociatedlymphoadenopathymimickingaperipheraltcelllymphoma
AT lynncmoscinski phenytoinassociatedlymphoadenopathymimickingaperipheraltcelllymphoma
AT lubomirsokol phenytoinassociatedlymphoadenopathymimickingaperipheraltcelllymphoma