Porphyria cutanea tarda (PCT) is a rare genetic condition that affects the production of heme, an important component of hemoglobin that carries oxygen in the blood. This condition causes a buildup of porphyrins, which can damage the skin, liver, and other organs.
PCT is the most common form of porphyria, accounting for about 80% of all cases. It usually develops in people between the ages of 30 and 50, and is more common in men than in women.
The most common symptom of PCT is the development of blisters and sores on sun-exposed areas of the skin, such as the face, hands, and arms. These blisters can be painful and may take several weeks to heal. Other symptoms of PCT may include:
PCT is caused by mutations in the UROD gene, which provides instructions for making an enzyme called uroporphyrinogen decarboxylase. This enzyme is essential for the production of heme, and mutations in the UROD gene can lead to a buildup of porphyrins in the body.
Factors that can trigger PCT include:
To diagnose PCT, your doctor may perform a blood test to measure the levels of porphyrins in your body. They may also perform a liver function test and a skin biopsy to confirm the diagnosis.
There is no cure for PCT, but treatment can help manage the symptoms and prevent complications. Treatment options may include:
Porphyria cutanea tarda (PCT) is a type of porphyria that affects the skin. It is a rare condition caused by a deficiency of an enzyme called uroporphyrinogen decarboxylase. This deficiency leads to the accumulation of porphyrins in the skin, which can result in blistering, skin fragility, and photosensitivity. While there is no cure fo...
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