Primary T cell lymphoma of salivary gland: a report of a case and review of the literature

J Clin Pathol. 2002 Jan;55(1):61-3. doi: 10.1136/jcp.55.1.61.

Abstract

Lymphoma of the salivary gland accounts for 5% of cases of extranodal lymphoma and 10% of malignant salivary gland tumours. Most primary salivary gland lymphomas are B marginal zone lymphomas arising on a background of sialadenitis associated with autoimmune disorders such as Sjorgen's syndrome. Primary T cell lymphoma of the salivary gland is rare. This report describes a case of primary T cell lymphoma arising in the parotid gland of an elderly white man, which was notable for its striking resemblance to a B cell extranodal marginal zone lymphoma. Immunohistochemistry and gene rearrangement studies confirmed the clonal T cell nature of the tumour. There was no molecular evidence of Epstein-Barr virus (EBV) infection of neoplastic or surroundings cells. Only 14 cases of primary T cell lymphoma of the salivary glands have been recorded in the literature, most being from the Orient and having extremely variable prognosis. Those with a T/natural killer cell phenotype are associated with EBV infection. This case highlights the fact that T cell lymphoma in the salivary gland can mimic closely the morphological features of B cell extranodal marginal zone lymphoma.

Publication types

  • Case Reports
  • Review

MeSH terms

  • Aged
  • Diagnosis, Differential
  • Humans
  • Lymphoma, B-Cell / diagnosis
  • Lymphoma, T-Cell / pathology*
  • Male
  • Parotid Neoplasms / pathology*