Clinical Diagnosis and Histopathological Observation of Atretic Pyometra in Felines
[Objective]This study aimed to clarify the clinical and pathological characteristics of feline pyo-metra atretic and improve its clinical diagnosis rate.[Method]Clinical diagnosis and histopathological ob-servation of felines with atretic pyometra were performed by B-ultrasound,digital radiography(DR),hema-tological examination and histopathological methods.[Result]The B-ultrasound image of the sick feline showed a distended and swollen uterine horn with a hypoechoic fluid-filled dark area,a fetal body with no reflec-tion in the dark area,and a significantly thickened uterine wall with irregular borders.DR examination also showed that the uterus of the sick feline was distended and swollen.The serum amyloid A(SAA)value,white blood cell number,neutrophil number and its percentage in the sick feline were significantly higher than those of healthy felines(P＜0.05),but all the biochemical indicators were normal.This suggested the presence of a purulent bacterial infection in the affected feline and a purulent inflammatory response in the blood domi-nated by neutrophilic hyperplasia.Histopathological observation showed that the uterine mucosa of the sick fe-lines was significantly thickened,with local shedding of mucosal epithelial cells,and a large accumulation of degenerated necrotic neutrophils.Persistent corpus luteum was present on the ovaries.[Conclusion]Pyometra caused the feline uterine swelling,the uterine mucosa thickening,local accumulation of degenerated and necrotic neutrophils,and the presence of a persistent corpus luteum on the ovaries.The results of this study have implications for the diagnosis and prevention of feline atretic pyometra.
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