Simple kidney cysts that are causing symptoms or blocking the flow of blood or urine through the kidney may need to be treated using a procedure called sclerotherapy. In sclerotherapy, the doctor punctures the cyst using a long needle inserted through the skin. Ultrasound is used to guide the needle to the cyst.
Note the dirt clods that are also characteristic of a mole. Gophers will not make these kinds of mounds or dirt clods. A burrow system is a vast network of interconnecting tunnels and passages. Tunnels vary in depth from 3 to 30 inches. Moles are active year round and make regular use of their tunnels.
You probably have a gopher if the dirt mounds when viewed from above are crescent or horseshoe shaped with a plug of dirt between the arms of the crescent. You may also see freshly plugged holes around 3 inches in diameter in your lawn or garden, without dirt mounds.