Knowra Kidney biopsy Kidney biopsy A medical procedure that removes a small sample of kidney tissue for microscopic examination. It helps identify the cause and severity of kidney disease and guide treatment.
Percutaneous kidney biopsy : A biopsy technique that passes a needle through the skin into a kidney, usually with imaging guidance. This is the standard approach for obtaining native kidney tissue.
Glomerulonephritis : Inflammation of the kidney glomeruli, often associated with blood or protein in the urine and impaired kidney function. Biopsy can identify the specific pattern and cause of glomerular injury.
Kidney ultrasound : An imaging examination that uses sound waves to assess kidney size, structure, and blood flow. Ultrasound shows anatomy but usually cannot identify microscopic disease patterns.
Nephron : The kidney’s microscopic functional unit, composed of a filtering corpuscle and a tubule. Biopsy interpretation often focuses on damage to nephron structures.
Ultrasound-guided biopsy : A procedure in which ultrasound imaging guides a needle or instrument to a target tissue. Real-time imaging helps position the biopsy needle and avoid nearby structures.
Nephrotic syndrome : A clinical syndrome marked by heavy urinary protein loss, low blood albumin, and often swelling. In adults, tissue diagnosis can guide treatment when this syndrome has an uncertain cause.
Urinalysis : A laboratory examination of urine for cells, chemicals, protein, and other abnormalities. Urine findings can suggest kidney disease, but do not always establish its tissue cause.
Glomerulus : A tuft of capillaries in the nephron that filters blood into the kidney tubule. Glomerular structure and immune deposits are frequent targets of biopsy analysis.
Computed tomography : An imaging method that uses X-rays and computer processing to create cross-sectional images of the body. CT can guide sampling when ultrasound does not provide a suitable view.
Lupus nephritis : Kidney inflammation caused by systemic lupus erythematosus, with several tissue-defined classes. Biopsy classifies kidney involvement and helps determine the intensity of treatment.
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