Manipal: Doctors at Kasturba Hospital here have removed a large kidney stone, that weighed as much as 530 gm, from a 46-year old man.

According to a press release issued by the hospital said that the man from Karkala was admitted recently after he complained of discomfort and pain, and also inability to control urination.

Padmaraj Hegde, Head of Department of Urology, examined the patient and found a 10 X 8 cm stone.

Dr. Hegde along with Zeeshan Hameed and Manjunath (professors in Urology Department) and Ramkumar, anaesthetist, performed an open cystolithotomy surgery to remove the stone that was bigger than a tennis ball. The patient has recovered fully, the release said.

What surprised the doctors was the size of the stone in a patient who was not old and had symptoms for just five days. Medical literature records only three stones bigger than this one — from China, Hungary, and Brazil, the release said.