The First Case of Concomitant Mycobacterium genavense lymphadenitis and EBV-positive lymphoproliferative disorder

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Yusuke Ito
Kensuke Takaoka
Kazuhiro Toyama
Yoshitaka Wakabayashi
Aya Shinozaki-Ushiku
Aiko Okazaki
Kinuyo Chikamatsu
Satoshi Mitarai
Tetsuo Ushiku
Mineo Kurokawa



This is the first case of concurrent Mycobacterium genavense lymphadenitis and Epstein-Barr virus (EBV)-positive lymphoproliferative disorder (LPD) in the same lymph node with no immunocompromised history. M. genavense infection is a rare opportunistic infection mainly for human immunodeficiency virus (HIV)-infected patients. Although no immunodeficiency was detected in our patient, our case indicates that the immunodeficiency in the background of EBV latency type III and the immunosuppression by malignant lymphoma itself might induce the M. genavense lymphadenitis. This case highly alerts clinicians the immunosuppressive state of EBV-positive LPD with latency type III even if any serological immunodeficient factors are not detected.


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