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Renal hypoplasia is a congenital abnormality in which one or both of the kidneys are smaller than normal, [5] resulting in a reduced nephron number [1] but with normal morphology. [ 4 ] It is defined as abnormally small kidneys, where the size is less than two standard deviations below the expected mean for the corresponding demographics , and ...
Renal agenesis is a medical condition in which one (unilateral) or both (bilateral) fetal kidneys fail to develop. Unilateral and bilateral renal agenesis in humans, mice and zebra fish has been linked to mutations in the gene GREB1L . [ 1 ]
Duplicated ureter or duplex collecting system is a congenital condition in which the ureteric bud, the embryological origin of the ureter, splits (or arises twice), resulting in two ureters draining a single kidney. It is the most common renal abnormality, occurring in approximately 1% of the population. [1] [2]
This category reflects the organization of International Statistical Classification of Diseases and Related Health Problems, 10th Revision. Generally, diseases outlined within the ICD-10 codes Q60-Q64 within Chapter XVII: Congenital malformations, deformations and chromosomal abnormalities should be included in this category.
Duplex kidney (Duplicated collecting system): A congenital condition where the kidney has two separate ureters (complete duplication) or a bifid ureter (partial duplication). In a coronal plane, both moieties may be visible, but in axial sections, one of the moieties may lack visible renal sinus structures, creating the faceless kidney sign.
Medullary sponge kidney is a congenital disorder of the kidneys characterized by cystic dilatation of the collecting tubules in one or both kidneys. Individuals with medullary sponge kidney are at increased risk for kidney stones and urinary tract infection (UTI). Patients with MSK typically pass twice as many stones per year as do other stone ...
Cystic kidney disease includes various conditions related to the formation of cysts in one or both kidneys. The most common subset is polycystic kidney disease (PKD), which is a genetic anomaly with two subsets, autosomal recessive polycystic kidney disease (ARPKD) and autosomal dominant polycystic kidney disease (ADPKD).
Duplex kidney (Duplicated collecting system): A congenital condition where the kidney has two separate ureters (complete duplication) or a bifid ureter (partial duplication). In a coronal plane, both moieties may be visible, but in axial sections, one of the moieties may lack visible renal sinus structures, creating the faceless kidney sign.