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Pyonephrosis (from Greek pyon 'pus' and nephros 'kidney' [1]) is a dangerous kidney infection that is characterized by pus accumulation in the renal collecting system. [2] It is linked to renal collecting system blockage and suppurative renal parenchymal destruction, which result in complete or nearly complete kidney failure. [3]
Symptoms of a kidney infection, on the other hand, are more systemic and include fever or flank pain usually in addition to the symptoms of a lower UTI. [10] Rarely, the urine may appear bloody. [7] Symptoms may be vague or non-specific at the extremities of age (i.e. in patients who are very young or old). [1] [11]
Nephritis can often be caused by infections and toxins, but it is most commonly caused by autoimmune disorders that affect the major organs like kidneys. [5]Pyelonephritis is inflammation that results from a urinary tract infection that reaches the renal pelvis of the kidney.
Rapidly progressive glomerulonephritis (RPGN) is a syndrome of the kidney that is characterized by a rapid loss of kidney function, [4] [5] (usually a 50% decline in the glomerular filtration rate (GFR) within 3 months) [5] with glomerular crescent formation seen in at least 50% [5] or 75% [4] of glomeruli seen on kidney biopsies.
Kidney disease, or renal disease, also known as nephropathy, is damage to or disease of a kidney. Nephritis is an inflammatory kidney disease and has several types according to the location of the inflammation. Inflammation can be diagnosed by blood tests. Nephrosis is non-inflammatory kidney disease.
It is generally described in older patients, who have less complement on renal biopsy and frequently have spontaneous remission. FAT1 is associated with haemopoetic stem cell transplant, and responds to treatment . NDNF is associated with syphilis (close to 100% of membranous nephrology is NDNF positive). HTRA1, often in older persons. [11]