ESTUDIO MORFOLÓGICO DEL ENDOMETRIO EN LA GATA DOMÉSTICA (FELIS SILVESTRIS CATUS): DATOS PRELIMINARES

Abstract

There are few studies on the occurrence and prevalence of subclinical endometrial disorders in cats. The objective was to carry out a cytological, histological, and morphometric study of the normal feline endometrium. Mixed-breed female cats were studied, in which vaginal cytology, blood, endometrial cytology, and biopsies were taken from both uterine horns. The cats were divided into three groups (G) according to the phase of the estrous cycle. G Inactive (GI, n = 7), G follicular (GF, n = 2) and G luteal (GL, n = 1). The histological study showed normal endometrium (EN, n = 8; 7 GI and 1 GF), endometritis (n = 1, GF), cystic endometrial hyperplasia (n = 1; GL). The serum concentrations of E2 and P4 in GI, GF and GL were: E2 10.30 ± 0.25, 12 and 10 pg / mL and P4 0.58 ± 0.10, 0.31 and 9 ng / mL respectively. In the endometrial cytological study of the normal endometrium (EN), a PMN percentage of 16.04 ± 2.87 was recorded. The study of uterine biopsies in EN showed longitudinal folds of the mucosa, intact endometrial epithelium firmly adhered to the basement membrane, and stromal tissue with little infiltration of leukocytes (0 to 3) per field and endometrial glands with secretory activity. The EN showed an endometrial thickness of 472.83 ± 99.05 μm and a glandular cell height of 15.10 ± 4.93 μm. There were no differences between the uterine horns. Knowledge of the histological, cytological, and morphometric characteristics in feline normal endometrium will improve the diagnostic approach of subclinical endometrial affections.