author(s)
Dr. Brajesh Kumar, Dr. Manish Agrawal, Dr. Vikas Galav, Dr. Sandeep Kumar Sharma, Dr. Rohit Kumar Tiwari, Dr. Sandeep Marodia and Dr. Rohitash Dadhich

abstract
The present research was conducted to the study occurrence and pathology of pyelonephritis in buffalo. In the present interrogation, a total number of 1054 specimens of urinary system of buffaloes suspected for abnormalities were examined irrespective of age, sex and breed. Out of these 1054 specimens, a total 228 number specimens of buffalo kidneys were collected from postmortem examined buffalo in post graduate institute of veterinary education and research, Jaipur, organized and unorganized slaughter houses of Jaipur division. The specimens of kidneys were observed for abnormalities and further processed for histopathological examination. This condition was recorded in 8.33% (19) cases. Grossly, the kidneys were enlarged and congested and presence of small and large greyish white nodules on the surface of the kidneys along with the capsule could be stripped off easily. Renal calyces were dilated with red, ulcerated wall and filled with a greasy purulent mass. The renal papilla showed hyperaemia and cortical haemorrhages. Microscopically, the cavity of Bowman’s capsule, glomerular tuft and surrounding tissues showed infiltration of polymorphonuclear cells or neutrophils. There was presence of cellular infiltration in renal parenchyma. Glomerular loops were also filled with polymorphonuclear cells and few mononuclear cells. There was marked cellular infiltration in the renal tubules and interstitial connective tissue with tubular epithelial cells necrosis. Looking to the immediate need of understanding the various pathological conditions involved in urinary diseases and for providing timely diagnosis.