multiple fluid-filled sacs (cysts) within and on the kidney bilaterallychildhood- autosomal recessive, less commonadult- autosomal dominant, typically around 30-40
The condition you are describing is known as polycystic kidney disease (PKD)
The condition you are describing is known as polycystic kidney disease (PKD). It is a genetic disorder characterized by the presence of multiple fluid-filled cysts within and on the kidneys. There are two main types of PKD: autosomal recessive PKD (ARPKD) and autosomal dominant PKD (ADPKD).
In childhood, the less common form of PKD is autosomal recessive PKD (ARPKD). This form is caused by a mutation in both copies of the PKHD1 gene, inherited from each parent. It is estimated to affect about 1 in 20,000 individuals. ARPKD can be diagnosed prenatally, as the enlarged kidneys can be detected on ultrasound during pregnancy. Symptoms typically appear shortly after birth or during infancy, and may include enlarged kidneys, high blood pressure, urinary tract infections, and liver problems.
On the other hand, the more common form of PKD in adults is autosomal dominant PKD (ADPKD). It is estimated that ADPKD affects around 1 in 500 to 1,000 individuals. ADPKD is caused by a mutation in the PKD1 or PKD2 gene, and it follows an autosomal dominant inheritance pattern. This means that a person has a 50% chance of inheriting the mutated gene from an affected parent. The symptoms of ADPKD usually start to develop in adulthood, typically around 30-40 years of age. These symptoms may include enlarged kidneys, abdominal pain, high blood pressure, urinary tract infections, kidney stones, and blood in the urine.
Both forms of PKD can lead to a decline in kidney function over time, eventually leading to kidney failure. Therefore, early diagnosis and management are important to slow down disease progression and preserve kidney function. Treatment options may include managing blood pressure, controlling complications such as infections and kidney stones, and in extreme cases, kidney transplantation. It is recommended that individuals with PKD have regular check-ups with a nephrologist (kidney specialist) to monitor their kidney function and overall health.
It is worth noting that PKD can have variable expressivity, meaning that the severity of the disease and the symptoms experienced can differ between individuals, even within the same family. Genetic testing can provide further information on the specific genetic mutation and help determine the risk of passing the condition to future generations. Genetic counseling is often recommended for individuals or families affected by PKD to understand the inheritance pattern, risk factors, and available options for family planning.
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