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': 'Antral puncture is done through- \nSelect and explain. \nA. Superior meatus, B. Inferior meatus, C. Middle meatus, D. All', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Proof puncture (Antral puncture) \n\nThis procedure involves puncturing the medial wall of the maxillary sinus in the region of the inferior meatus and irrigating\xa0the sinus.\n\nIndications\n1)\xa0\xa0 Chronic and subacute maxillary sinusitis with the dual purpose of :\n\nConfirming the diagnosis and\nWashing out the pus\n\n2)\xa0\xa0 To collect the specimen of the antral contents for culture and sensitivity, or cytological examination to exclude early malignancy.\nContraindications\n\nChildren less than 12 years of age.\nAcute maxillary sinusitis as it may lead to osteomyelitis\nFracture of maxilla as fluid may pass through fracture line.\nDiabetes', 'role': 'assistant'}]