This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: HAEM synth and porphyrias, Subject name: Biochemistry
[{'content': 'All of the following are hepatic porphyrias, EXCEPT: \nSelect and explain. \nA. Variegate porphyria, B. Acute intermittent porphyria, C. Porphyria Cutanea Tarda, D. Protoporphyria', 'role': 'user'}, {'content': 'Answer: D \nExplanation: X-linked protoporphyria, Congenital erythropoietic porphyria & Protoporphyria are the erythropoietic porphyrias. Porphyrias are divided based on their erythropoietic and hepatic clinical manifestations. Type of porphyria Erythropoietic porphyrias Acute hepatic porphyrias Clinical features: Cutaneous symptoms and appear in early childhood Variable extra-hepatic gastrointestinal manifestations Neurological-psychiatric symptoms Cardiovascular symptoms Complications: Cholestatic liver cirrhosis and progressive hepatic failure HCC', 'role': 'assistant'}]