<prompt> Persistent multinodular goiter may cause -Follicular CarcinomaPappilary CarcinomaMedullary CarcinomaColloid Carcinoma  <response>: 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 