This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: ENT
[{'content': 'Treatment of choice in recurrent epistaxis in a patient with hereditary hemotelangiectasis: \nSelect and explain. \nA. Anterior ethmoidal aery ligation, B. Septal dermatoplasty, C. External carotid aery ligation, D. Internal carotid aery ligation', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Hereditary hemotelangiectasia (HHT) or Osler-Weber-Rendu disease is an autosomal dominant condition affecting blood vessels in the skin, mucous membranes and viscera The genetic abnormality is located to chromosome 9 and 12 Classical features: Telangiectasia AN malformations Aneurysms Recurrent epistaxis (seen in 93% cases)', 'role': 'assistant'}]