All can be manifestations of polycystic kidney except?
**Core Concept**
Polycystic kidney disease (PKD) is a genetic disorder characterized by the growth of numerous cysts filled with fluid in the kidneys, leading to renal enlargement and potential complications such as hypertension, renal failure, and increased risk of kidney stones.
**Why the Correct Answer is Right**
Polycystic kidney disease is a complex disorder affecting multiple organ systems. The manifestations of PKD can include renal cysts, hypertension, hematuria, proteinuria, renal failure, and increased risk of kidney stones. The disease often presents with a combination of these symptoms. However, certain manifestations are not typical of PKD.
**Why Each Wrong Option is Incorrect**
**Option A:** Hematuria can be a manifestation of PKD due to the rupture of cysts or other complications.
**Option B:** Hypertension is a common finding in PKD due to the increased renin production by the cystic kidneys.
**Option C:** Renal failure is a potential complication of PKD due to the progressive loss of renal function.
**Clinical Pearl / High-Yield Fact**
PKD is typically inherited in an autosomal dominant pattern and can be caused by mutations in either the PKD1 or PKD2 gene. Early diagnosis and management are crucial to prevent or delay the progression of renal disease.
**Correct Answer: D.**