HISTOPATHOLOGICAL EVALUATION OF SUBMANDIBULAR LYMPH NODES AND SPLEEN OF CATS FROM THE ANIMAL PATHOLOGY LAB - UFU

Abstract

Lymph nodes and spleen are important lymphoid organs, responsible for a series of responses to various changes that can occur, and they are in strategic positions in the body of the animals. A histopathological evaluation of the submandibular lymph node and spleen of cats received at the Animal Pathology Sector of the Veterinary Hospital of the Federal University of Uberlândia was carried out, with the aim of observing and documenting the histological patterns found at each organ. Tissue fragments were collected from 30 cats, immediately after the animals entered the Animal Pathology Department. The fragments were placed in a 10% formalin solution for at least 24 hours, submitted to histological processing and slides were made for evaluation under optical microscopy. The changes found were: red pulp hyperplasia, white pulp hyperplasia, lymphoplasmacytic capsular inflammatory infiltrate, congestion, lymphoid follicular atrophy, hemorrhage, lymphoid follicular hyperplasia and hemosiderosis.The present work concludes the importance of evaluating these lymphoid organs in cats to better elucidate how they present microscopic changes.

Keywords: Histology, Lymphoid organ, Feline, Felis catus.