<prompt> 70 year old female with SNT shows increased RAI, Serum T3 and T4 are elevated. Most probable diagnosis is:Benign Colloid NoduleSolitary NoduleFollicular adenomaToxic Multinodular goiter  <response>: Ans. d Toxic multinodular goiterRef: Page 1531 Schwartz 10th edition Increased RAIU is seen in: Graves disease Diffuse Toxic Goiter Toxic Multinodular goiter Toxic adenoma Drug induced - Amiodarone, Iodides Cancer thyroid Struma Ovarii Hydatiform mole TSH secreting Pituitary adenoma 