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Πέμπτη 3 Ιουνίου 2021

Cutaneous methotrexate-related T-cell lymphoproliferative disorder with CD4, CD30, CD56, EBV-positive tumor cell infiltration: a case illustration and a brief review

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Am J Blood Res. 2021 Apr 15;11(2):163-167. eCollection 2021.

ABSTRACT

Methotrexate (MTX) is a commonly used anti-metabolite agent. Long-term MTX treatment can cause MTX-related lymphoproliferative disorder (MTX-LPD). T-cell LPDs comprise a small fraction of MTX-LPDs. Epstein-Barr virus (EBV)+ tumor cells are rarely detected in MTX-related T-cell LPDs (MTX T-LPDs). Therefore, there have been very few reports of EBV+ MTX T-LPD. We encountered a case of cutaneous MTX T-LPD with a unique cellular phenotype. The patient was a 71-year-old Japanese man with rheumatoid arthritis treated with MTX for 6 years. He was referred to our department with a 6-month history of red plaques and ulcerated lesions in both lower legs and a 2-week history of high fever and fatigue. Cutaneous specimens showed that medium-sized atypical lymphocytes were positive for CD3, CD4, CD30, CD56, and in situ hybridization for EBV-encoded RNA. The p atient was diagnosed with cutaneous MTX T-LPD. Four months after discontinuation of MTX, the skin lesions had disappeared. This is the first report of cutaneous MTX T-LPD with CD4+CD30+CD56+EBV+ tumor cells.

PMID:34079630 | PMC:PMC8165712

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