Vocal cord palsy is not caused by:: (A) Vertebral secondaries, (B) Left atrial enlargement, (C) Bronchogenic carcinoma, (D) Secondaries in mediastinum
Answer is A. (a) Vertebral secondaries(Ref. Scott Brown, 6th ed., 1/12/17)Superior and recurrent laryngeal nerves are not in close proximity to vertebrae.Rest of the given (mediastinal) conditions can cause left recurrent laryngeal nerve palsy.