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Basic schema of tonsil grading. Important when evaluating site of airway obstruction, especially in consideration of OSA. A) Grade 0 B) Grade 1 C) Grade 2 D) Grade 3 E) Grade 4 Image Source: Scholes, Melissa A., and Vijay R. Ramakrishnan. 2016. ENT secrets. #clinical #physicalexam #otolaryngology #surgery #tonsil #tonsillectomy