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Primate Biology An international open-access journal on primate research
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Volume 4, issue 1
Primate Biol., 4, 39–46, 2017
https://doi.org/10.5194/pb-4-39-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: Special diseases of nonhuman primates

Primate Biol., 4, 39–46, 2017
https://doi.org/10.5194/pb-4-39-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 08 Mar 2017

Research article | 08 Mar 2017

Intravascular T-cell lymphoma in a patas monkey (Erythrocebus patas)

Karen Lampe1, Jens-Christian Rudnick2, Fabian Leendertz3, Martina Bleyer1, and Kerstin Mätz-Rensing1 Karen Lampe et al.
  • 1Pathology Unit, German Primate Center, Leibniz-Institute for Primate Research, Kellnerweg 4, 37077 Göttingen, Germany
  • 2Tierklinik-Tierheim GmbH Rostock, Thierfelderstraße 19, 18059 Rostock, Germany
  • 3Robert Koch Institut, Nordufer 20, 13353 Berlin, Germany

Abstract. A 9-year-old female captive patas monkey (Erythrocebus patas) presented with poor general condition, inability to stand, petechiae, anaemia, thrombocytopenia, and leukocytosis. Due to poor response to treatment, the animal was euthanized 16 days later. Postmortem examination revealed hemorrhages in several organs and bilateral cerebral infarctions. Histologically, prominent accumulations of large neoplastic lymphocytes in cerebral and meningeal blood vessels were demonstrated within the lesions and in other organs (e.g., bone marrow, ovary, intestine). Immunohistochemically, neoplastic cells expressed CD3 and Ki-67. PCR revealed a lymphocryptovirus (LCV) infection, while Epstein–Barr nuclear antigen 2 (EBNA2) could not be demonstrated within neoplastic cells by means of immunohistochemistry. Based on the pathological findings, an intravascular lymphoma (IVL) of T-cell origin was diagnosed. To the authors' knowledge, this is the first report on this rare entity in a nonhuman primate.

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