Characterization of T-cell lymphomas associated with an outbreak of reticuloendotheliosis in turkeys

R. Crespo, P. R. Woolcock, A. M. Fadly, C. Hall, H L Shivaprasad

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Increased mortality and decreased egg production associated with disseminated lymphoma were observed in a turkey breeding flock for more than 20 weeks. A few unrelated meat turkey flocks, from the same integrator, experienced increased condemnation due to neoplasia in a few organs. Lymphoma was characterized by a uniform population of large lymphocytes with large vesicular nuclei containing one or two nucleoli and with little, faintly staining, basophilic cytoplasm. Neoplastic cells replaced normal tissue and were consistent with lesions seen with reticuloendotheliosis virus (REV) infection. Immunoperoxidase and fluorescent antibody staining characterized the neoplastic cells as CD3+, CD4+ and CD8- lymphocytes. Infection with REV was confirmed by virus isolation, polymerase chain reaction, serology and indirect fluorescent antibody. Poults hatched from these breeders tested positive for REV antibodies at hatch, but the performance of these flocks was normal and lymphoma was not observed. The origin of REV infection in this outbreak could not be determined. This is the first documented report of T-cell lymphomas associated with REV in commercial flocks. Furthermore, this is the first time that lymphomas have been characterized as T helper cells (CD3+ CD4+ and CD8-) in an outbreak of REV in turkeys.

Original languageEnglish (US)
Pages (from-to)355-361
Number of pages7
JournalAvian Pathology
Volume31
Issue number4
DOIs
StatePublished - 2002

Fingerprint

reticuloendotheliosis
Reticuloendotheliosis virus
T-Cell Lymphoma
lymphoma
Disease Outbreaks
T-lymphocytes
Lymphoma
flocks
Virus Diseases
antibodies
Antibodies
lymphocytes
infection
Lymphocytes
Staining and Labeling
turkey meat
poults
cell nucleolus
Serology
Helper-Inducer T-Lymphocytes

ASJC Scopus subject areas

  • Immunology
  • veterinary(all)

Cite this

Characterization of T-cell lymphomas associated with an outbreak of reticuloendotheliosis in turkeys. / Crespo, R.; Woolcock, P. R.; Fadly, A. M.; Hall, C.; Shivaprasad, H L.

In: Avian Pathology, Vol. 31, No. 4, 2002, p. 355-361.

Research output: Contribution to journalArticle

Crespo, R. ; Woolcock, P. R. ; Fadly, A. M. ; Hall, C. ; Shivaprasad, H L. / Characterization of T-cell lymphomas associated with an outbreak of reticuloendotheliosis in turkeys. In: Avian Pathology. 2002 ; Vol. 31, No. 4. pp. 355-361.
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