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': 'A child with unilateral nasal obstruction along with a mass in cheek and profuse & recurrent epistaxis: \nSelect and explain. \nA. Juvenile Nasal angiofibroma, B. Glomus tumour, C. Antrochoanal polyp, D. Rhinolith', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Nasopharyngeal angiofibroma/ Juvenile nasopharyngeal angiofibroma It is a histologically benign but locally aggressive vascular tumor that grows in the back of the nasal cavity. It most commonly affects adolescent males. Patients with nasopharyngeal angiofibroma usually present with one-sided nasal obstruction and recurrent bleeding.', 'role': 'assistant'}]