Differential diagnosis of hoarseness are :
-angioedema
-laryngitis
-vocal cord nodules, polyps, papilloma
-gastroesophageal reflux disease
-thyroid carcinoma
-thyroiditis
-multinodular goiter
-hypothyrodism
-unilateral vocal cord paralysis
-lung carcinoma with paralysis of recurrent laryngeal nerve
-laryngeal carcinoma
-voice overuse
-angioedema
-laryngitis
-vocal cord nodules, polyps, papilloma
-gastroesophageal reflux disease
-thyroid carcinoma
-thyroiditis
-multinodular goiter
-hypothyrodism
-unilateral vocal cord paralysis
-lung carcinoma with paralysis of recurrent laryngeal nerve
-laryngeal carcinoma
-voice overuse