Randomized study of percutaneous ureteroscopic plasma column electrode decortication and laparoscopic decortication in managing simple renal cyst

Simple renal cyst (SRC) is a common cystic renal disease in urology and the prevalence is 20–50% in general population (1). The incidence is increased with age. The possibility of an increase in diameter of an SRC was 7.1 times greater in patients aged over 50 years than in those aged less than 50 years (2). The smaller renal cyst does not require treatment because it is asymptomatic and without renal function damage (3). A small proportion of SRC sometimes has symptoms, such as hematuria, pain, obstruction and hypertension. Treatment was required for patients with these symptoms