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': 'Grommet tube is used in - \nSelect and explain. \nA. Secretory otitis media, B. Mucoid otitis media, C. Serous otitis media, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: In some cases of myringotomy, a ventilation tube, also known as grommet or tympanostomy tube, is inserted through myringotomy incision to allow future drainage of the fluid.\nThe most common indication for myringotomy and grommet insertion is serous otitis media also known as secretory otitis media or mucoid otitis media.\nHowever, it should be kept in mind that SOM is not the only indication for myringotomy with grommet insertion. Other indications are :-\n\n\nRecurrent acute otitis media (three or more significant ear infections within a six month period).\nChronic otitis media with effusion\nComplications of acute otitis media\nTympanic membrane abnormalities (atelectasis or retraction)\nConditions predisposing to eustachian tube dysfunction', 'role': 'assistant'}]