The most common cause of laryngeal stridor in a 60 year old male is -

Most common cause for stridor in 60 years old male will be carcinoma larynx as carcinoma larynx occurs in males (predominantly) at the age of 40–70 years. Most common and earliest symptom of subglottic cancer is stridor. NOTE: Nasopharyngeal cancer does not lead to stridor Thyroid cancer causes stridor rarely Foreign body aspiration is a common cause of stridor in children and not adults.