Abstract
Other iatrogenic immunodeficiency-associated lymphoproliferative disorders induced by immunosuppressive drugs, such as methotrexate (MTX-LPD), exhibit numerous pathological findings. We report the case of an 81-year-old Japanese woman diagnosed with MTX-LPD exhibiting two distinct pathological features from two different sites. Excisional biopsy of the left cervical lymph node revealed EBV-negative diffuse large B-cell lymphoma and biopsy of a pharyngeal ulcer revealed EBV-positive mucocutaneous ulcer. She was treated using an R-CHOP regimen and maintained complete remission for years. This case demonstrates the heterogeneous pathology of MTX-LPD and suggests the necessity of multiple biopsy.
Keywords:
EBV-positive mucocutaneous ulcer; Epstein-Barr virus; Other iatrogenic immunodeficiency-associated lymphoproliferative disorders; diffuse large B-cell lymphoma; methotrexate.
MeSH terms
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Aged, 80 and over
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Antineoplastic Combined Chemotherapy Protocols / therapeutic use*
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Composite Lymphoma / chemically induced*
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Composite Lymphoma / complications
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Composite Lymphoma / diagnosis
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Composite Lymphoma / drug therapy
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Cyclophosphamide / therapeutic use
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Doxorubicin / therapeutic use
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Epstein-Barr Virus Infections / complications
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Epstein-Barr Virus Infections / diagnosis
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Female
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Humans
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Immunosuppressive Agents / adverse effects*
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Lymphoma, Large B-Cell, Diffuse / chemically induced*
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Lymphoma, Large B-Cell, Diffuse / complications
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Lymphoma, Large B-Cell, Diffuse / diagnosis
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Lymphoma, Large B-Cell, Diffuse / drug therapy
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Lymphoproliferative Disorders / chemically induced
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Lymphoproliferative Disorders / complications
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Lymphoproliferative Disorders / diagnosis
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Lymphoproliferative Disorders / drug therapy
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Methotrexate / adverse effects*
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Pharynx / drug effects
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Pharynx / pathology
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Prednisone / therapeutic use
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Rituximab / therapeutic use
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Ulcer / chemically induced
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Ulcer / complications
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Ulcer / diagnosis
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Vincristine / therapeutic use
Substances
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Immunosuppressive Agents
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R-CHOP protocol
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Rituximab
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Vincristine
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Doxorubicin
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Cyclophosphamide
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Prednisone
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Methotrexate