PATHOLOGY

Detailed explanation-1: -Pyelonephritis occurs as a complication of an ascending urinary tract infection (UTI) which spreads from the bladder to the kidneys and their collecting systems. Symptoms usually include fever, flank pain, nausea, vomiting, burning on urination, increased frequency, and urgency.

Detailed explanation-2: -Pyelonephritis is an inflammation of the renal pelvis (from the Greek nephros: “kidney”, pýlos: “pelvis” and-itis: “inflammation”). Pyelonephritis is usually caused by bacteria that have travelled along the urethra, through the urinary bladder and the ureters, and into the renal pelvis.

Detailed explanation-3: -Acute pyelonephritis is defined as inflammation of the kidney and the renal pelvis.

Detailed explanation-4: -pyelonephritis, infection and inflammation of the kidney tissue and the renal pelvis (the cavity formed by the expansion of the upper end of the ureter, the tube that conveys urine to the bladder). The infection is usually bacterial. The most common type of renal disorder, pyelonephritis may be chronic or acute.