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In endemic goitre areas, 20% of the population over 70 will have retrosternal goitre. 12 Obstructive sleep apnoea (OSA) occurs when there are repeated episodes of complete or partial blockage of the upper airway during sleep.A 55-year-old man was being treated for obstructive sleep apnoea, came with stridor worsening over the 2 and was advised CPAP ventilation. In our institution, he was diagnosed...