A single renal cyst presenting on one side of the kidney is often a simple cyst of the kidney, B Ultrasound is widely used in common after renal occupying lesions. The incidence in the population is 10%, with increasing incidence of age increased. It is called simple renal cyst because this kind of renal cyst will not lead to the decline of renal function, renal anemia will not appear, renal hypertension does not appear. Slow growth, little effect on the body. Imaging features thin wall, smooth and clear boundary, cyst fluid density, no thick walls and calcification. Need to identify the polycystic kidney disease, polycystic kidney disease is a genetic disease, there is a clear family history, there will be multiple bilateral kidney cysts, the incidence of early age, the number of cysts and more, and bilateral, often liver cysts.
Simple renal cysts less than 40 mm in diameter are generally not treated, renal cysts larger than 40 mm can be treated with a B-guided percutaneous fluid draw and a sclerotherapy agent (typically anhydrous alcohol), a minimally invasive method, damage is small, can be cured without pain.
Smaller renal cysts, only need to regularly review B Ultrasound, do not need treatment.
Simple renal cyst malignancy is extremely rare, B ultrasound or CT examination showed cystic thick wall and irregular cystic cystic lesions, the lesion border is not clear, thick wall and calcification, the interval thickness greater than 1mm, and has been strengthened, it is recommended to further make a puncture cytology or surgical exploration. If the capsule has a solid mass and with multiple partitions, showing enhanced soft tissue shadow, the possibility of malignant is high, you need to check and take surgical treatment.
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