Thyroid quiz 4 Welcome to your Thyroid quiz 4 A some around 58-year-old male presents with a rapidly enlarging thyroid mass. Ultrasound guided fine needle aspiration cytology for evaluation. Medullary Thyroid Carcinoma Undifferentiated/Anaplastic Carcinoma of the Thyroid Poorly Differentiated Thyroid Carcinoma High grade lymhoma 1 out of 1 Please fill in the comment box below. Time is Up! Time's up