2012-05-20

Renal cyst classification

Renal cyst classification of renal cysts in the clinical manifestations vary, the classification of types of renal cysts is more diverse. Common renal cyst classification of simple renal cysts, acquired renal cysts and congenital renal cysts. The following classification for everyone on the classification of renal cysts -
1. Polycystic kidney disease
Polycystic kidney disease is a hereditary disease, showing the cortex and medulla of the kidney appeared in numerous sizes of the cysts, they have gradually grown up, squeezed in renal tissue, resulting in renal damage and renal dysfunction, when the renal clearanceloss of function of the body of waste, due to the accumulation of toxins, the final form of uremia and life-threatening. Divided into autosomal dominant adult polycystic kidney disease (ADPKD) and autosomal recessive infantile polycystic kidney disease (of ARPKD), two types of polycystic kidney disease, according to their genetic characteristics.
(2) simple renal cysts
Simple renal cysts are the most common form of human renal disease, mainly seen in the adult aged over 50 is more common, simple renal cysts usually presents one side or one or a few cysts in both kidneys in general was isolated spherical, located in the renal cortex (also located in the deep cortex or medulla), and altered kidney shape.
(3) acquired renal cystic
Acquired renal cystic other than those due to renal disease (cystic kidney disease) caused by renal failure, renal cystic disease, on each side of renal cysts have more than one performance of multiple symmetry cyst " . More than 40% of the renal parenchyma by multiple cysts replaced by B ultrasound or CT can be found in more than four of the cyst.
4 dysplastic polycystic kidney disease
This disease is the most common neonatal abdominal mass, one of the reasons, the lesions often has the unilateral, segmental stenosis of the renal collecting system, bilateral often life-threatening. The majority of patients with prenatal ultrasound can be confirmed that the clinical manifestations of asymptomatic abdominal mass. Suffering from renal loss of normal shape, instead of the irregular size of the cyst, ipsilateral renal function, and is often accompanied by ureteral obstruction, the contralateral kidney compensatory hypertrophy, 10% of the contralateral input urinary obstruction.
5 medullary sponge kidney
Renal medullary sponge kidney is a common renal medullary cystic disease, one of. Is a relatively common renal abnormalities, the incidence rate of approximately 1/5000, the majority to 40 to 50 years old before onset. Which is characterized by medullary collecting duct cystic expansion to approximate the sponge from the gross appearance point of view, hence the name.

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