title: Cutaneous plasmablastic lymphoma in an immunocompetent patient with long-term pyrimethamine use for essential thrombocythemia: a case report and literature review.
abstract: We report a case of Epstein-Barr-virus-(EBV-) positive primary cutaneous plasmablastic lymphoma in a human-immunodeficiency-virus-(HIV-) negative, immunocompetent 62-year-old female patient. We postulate that her lymphoma development is due to the longstanding use of pyrimethamine for essential thrombocythemia. This has never been described in the literature.
authors.affiliation: Southern Blood and Cancer Service, Dunedin Hospital, Private Bag 1921, Dunedin 9054, New Zealand.
authors.forename: Ing Soo
authors.initials: IS
authors.lastname: Tiong
authors.forename: Magreet
authors.initials: M
authors.lastname: Strauss
authors.forename: Michael B Y
authors.initials: MB
authors.lastname: Lau
authors.forename: Shingirai
authors.initials: S
authors.lastname: Chiruka