Persistent multinodular goiter may cause -
Ans. is 'a' i.e., Follicular Carcinoma "An increased incidence of cancer (usually follicular) has been reported from endemic areas. Dominant or rapidly growing nodules in longstanding goiters should always be subjected to aspiration cytology." - Bailey & Love
Follicular Carcinoma
Pappilary Carcinoma
Medullary Carcinoma
Colloid Carcinoma
Thyroid Malignancies