The image presents a comparison between normal and Polycystic kidney. Polycystic kidney disease (PKD) is an inherited disorder presenting clusters of noncancerous fluid-filled cysts, primarily within the kidneys.It causes the kidneys to enlarge and lose function over time. Image by : https://www.instagram.com/p/CHCNVMHhylA/?igshid=mg9ykw2g804l