True statement about paralysis of recurrent laryngeal nerve is: (A) Common on left side, (B) 50% idiopathic, (C) Cord will lie laterally, (D) Speech therapy given
Answer is A. Paralysis of recurrent laryngeal nerve common on the left side. The common causes are Bronchogenic cancer Accidental trauma Thyroid surgery Thyroid disease (benign or malignant Cervical lymphadenopathy Carcinoma cervical oesophagus Carcinoma thoracic oesophagus Aoic aneurysm Mediastinal lymphadenopathy Ref: PL Dhingra Textbook of Ear, Nose and Throat, Edition 6, page - 299