title: Extranodal lymphoma in the cat: prognostic factors and treatment options.
abstract: BACKGROUND
  The majority of feline lymphoma is extranodal. While the gastrointestinal (GI) tract is the most commonly affected site, non-GI extranodal lymphomas, which are the focus of this review, account for a large proportion of lymphomas in cats. This article discusses prognostic factors for the most common of these extranodal lymphomas, both in general terms and specifically for individual sites.
  
  
  OBJECTIVE
  Prognostic factors remain poorly defined for feline lymphoma. Many cats with extranodal lymphoma have stage I disease at an accessible site. A major question for patients with apparently localised extranodal lymphoma is whether the tumour can be treated with localised therapy alone or requires systemic treatment as well. Again there is often no specific information available for a particular site, such as a localised intramuscular lymphoma. Instead, reliance must be placed on careful patient staging, particularly if local therapy alone is planned.
  
  
  METHODS
  Until such time as further studies looking at stage, anatomic site, histological grade and immunophenotype are available to assist treatment decision making for an individual cat with extranodal lymphoma, it seems reasonable to draw inferences from other common extranodal sites for which more specific information exists, such as nasal lymphoma.
authors.affiliation: Veterinary Oncology Consultants Pty Ltd, 379 Lake Innes Drive, Wauchope, NSW 2446, Australia. voc@vetoncologyconsults.com
authors.forename: Antony
authors.initials: A
authors.lastname: Moore
mesh_terms: D000818:Animals; D002371:Cat Diseases / Q000145:classification / Q000473:pathology* / Q000628:therapy*; D002415:Cats; D019468:Disease Management; D008223:Lymphoma / Q000145:classification* / Q000473:pathology / Q000628:therapy / Q000662:veterinary*; D010808:Physical Examination / Q000662:veterinary; D011379:Prognosis; D014730:Veterinary Medicine / Q000379:methods*