Pediatric Nephrology Glossary
100 terms total — 24 showing — Last updated 15 Sep 2026
detrusor-sphincter dyssynergia DSD
Neurogenic condition where the bladder muscle and external urethral sphincter contract simultaneously instead of coordinating properly.
posterior urethral valves
Congenital obstructive leaflets in the posterior urethra of male infants, causing urinary tract obstruction.
Potter sequence
A constellation of fetal abnormalities resulting from severe oligohydramnios, often due to kidney malformations.
proteinuria
Abnormal presence of protein in urine, often indicating kidney disease or dysfunction.
pyeloplasty
Surgical repair of ureteropelvic junction obstruction to restore normal urine flow from kidney to ureter.
renal biopsy
Percutaneous or surgical sampling of kidney tissue for histopathological examination to diagnose glomerular, tubular, or...
renal dysplasia
Abnormal kidney development characterized by disorganized renal tissue with primitive ducts and may include cartilage or...
renal osteodystrophy
Bone disease that develops in children with chronic kidney disease due to mineral and bone metabolism disorders.
renal replacement therapy
Treatment modalities that replace kidney function, including dialysis and transplantation, used when kidneys fail to fun...
renal scarring
Permanent kidney damage resulting from infection, reflux, or other inflammatory processes, often detected on imaging stu...
renal tubular acidosis
A group of disorders characterized by the kidney's inability to acidify urine appropriately, leading to metabolic acidos...
renal tubular dysgenesis
Rare autosomal recessive disorder characterized by absence or severe reduction of proximal tubules in the kidney.
RPGN
A severe form of glomerulonephritis characterized by rapid loss of kidney function over days to weeks.
Shiga toxin-producing E. coli
Bacterial pathogen that produces Shiga toxins, commonly causing hemolytic uremic syndrome in children.
thrombotic microangiopathy
Group of disorders characterized by microangiopathic hemolytic anemia, thrombocytopenia, and organ dysfunction including...
tubular dysfunction
Impaired function of kidney tubules affecting electrolyte balance, acid-base status, or concentration ability. Common in...
tubular proteinuria
Proteinuria characterized by the presence of low-molecular-weight proteins due to impaired tubular reabsorption rather t...
urea reduction ratio
A measure of dialysis adequacy calculated from pre- and post-dialysis blood urea nitrogen levels, critical for monitorin...
uremia
A toxic clinical syndrome resulting from severe kidney dysfunction with accumulation of uremic toxins in the blood.
uremic frost
Crystalline deposits of urea on the skin surface, appearing as a white powdery coating in patients with severe uremia.
ureteral reimplantation
Surgical procedure to correct vesicoureteral reflux by repositioning the ureter's entry point into the bladder to create...
ureterocele
Cystic dilatation of the distal ureter within the bladder, often associated with duplicated collecting systems.
urodynamic study
Specialized testing to evaluate bladder and urethral function, including pressure measurements and voiding patterns.
VCUG
Radiologic study using contrast to visualize the bladder and detect vesicoureteral reflux during voiding.
vesicoureteral reflux
Abnormal retrograde flow of urine from the bladder into the ureters and potentially the kidneys, a common urological con...