Skin Which of the following is not true about Porphyria cutanea tarda (PCT) A Is the least common type of human porphyria B Decreased activity of the enzyme uroporphyrinogen decarboxylase C Prior hepatitis C virus infection appears to be an independent risk factor. D Treatment of PCT consists of repeated phlebotomies. 💡 Explanation Which of the following is not true about Porphyria cutanea tarda (PCT) ✓ Correct Answer: A. Is the least common type of human porphyria