In case of Adenomatoid goitre which carcinoma is commonest to occur
"An increased incidence of cancer (usually follicular) has been repoed from endemic areas. Dominant or rapidly growing nodules in longstanding goitres should always be subjected to aspiration cytology." Ref : Bailey & Love 25/e p778
Medullary Ca
Follicular Ca
Papillary Ca
Anaplastic Ca
Endocrinology and breast