Despite the use of real-time ultrasound and spring-loaded biopsy needles, the frequency of clinically significant bleeding after kidney biopsy is approximately 3–12%, with up to 6% of all ...

Cysts can form in the kidney for many reasons, and most such cysts are benign (non-cancerous). However, in some instances a cyst may become enlarged to the point that it causes pain, obstructs the ...