Which extrarenal organ is commonly affected by cyst formation in polycystic kidney disease?

Which extrarenal organ is commonly affected by cyst formation in polycystic kidney disease?

• A. Heart
• B. Liver
• C. Brain
• D. Lungs

Answer: (B)

In polycystic kidney disease, cysts can form in multiple organs beyond the kidneys. The liver is the organ most commonly affected by cyst formation in this condition. Hepatic cysts arise from biliary epithelium and become more common with age, typically being asymptomatic but sometimes causing hepatomegaly or abdominal discomfort. By contrast, brain involvement in PKD is usually due to berry aneurysms (vascular), not cysts, and while the lungs and heart can have issues, cyst formation in those organs is not the characteristic finding. So the liver is the best answer because hepatic cysts are the most frequent extrarenal cystic manifestation of PKD.

In polycystic kidney disease, cysts can form in multiple organs beyond the kidneys. The liver is the organ most commonly affected by cyst formation in this condition. Hepatic cysts arise from biliary epithelium and become more common with age, typically being asymptomatic but sometimes causing hepatomegaly or abdominal discomfort. By contrast, brain involvement in PKD is usually due to berry aneurysms (vascular), not cysts, and while the lungs and heart can have issues, cyst formation in those organs is not the characteristic finding. So the liver is the best answer because hepatic cysts are the most frequent extrarenal cystic manifestation of PKD.