Comprehensive Epidemiological Assessment of Feline Lymphomas in Brazil

Advances in veterinary medicine have contributed to increased life expectancy in companion animals, leading to a higher incidence of chronic and neoplastic diseases in cats. Epidemiological studies correlating demographic and clinical factors with lymphoma in cats are needed, particularly in South America. Data from 662 cats diagnosed with lymphoma were collected from veterinary centers located in all five Brazilian geographical regions and the Federal District. This study represents one of the largest epidemiological assessments of feline lymphoma in Brazil and highlights the broad distribution of the disease across diverse regions and age groups. The predominance of mixed-breed animals and the frequent association with retroviral infections underscore the need for early diagnostic protocols and targeted health strategies to address this issue. These findings contribute to a better understanding of feline lymphoma in Brazil and may support future efforts in disease prevention, early detection, and therapeutic planning for this disease.