A retrospective histopathological survey on canine lymphomas subtypes of Porto District

Abstract

Background: Lymphomas are the most common hematopoietic neoplasms in dogs and represent a heterogeneous group, as occurs in humans. Considering the role of dogs as models of human lymphomas and the geographical correlation of the cases of canine and human lymphoma, it is important to continuously assess the epidemiological distribution of lymphoma subtypes in dogs. Aim: The aim of this study was to provide a survey of canine lymphoma subtypes diagnosed from 2005 to 2016 in the academic veterinary pathology laboratory of the University of Porto. Methods: A total of 75 canine lymphomas diagnosed by histopathology in the Porto district were included. All cases were immunophenotyped by CD3 and PAX5, classified according to the current classification WHO, and coded with Vet-ICD-O-canine-1. Results: Mixed breed dogs were most common (28%), followed by Cocker Spaniels (12%), Boxers (9%), and Labrador Retrievers (6%). The mean age was 9.2 years (SD=3.3) (10.7 years for small, 8.9 years for medium and large, and 5.7 years for giant breed dogs, p [Open Vet J 2023; 13(4.000): 443-450]

Keywords

• canine
• lymphoma
• histopathology
• portugal
• vet-icd-o-canine-1