hi there, from your blood reports its evident that you are htperthyroid and from your scan report it is indicative of diffusely enlarged goiter
with an active nodule which is showing high vascularity. The rest of the gland is suppressed due to the hyper activity of the active nodule. The presence of lymph
node enlargement and the presence of cold
nodule on radionuclide
scan is an indication for you to get a FNAC done preferably an ultrasound
guided one from the cold nodule to rule out any malignancy. So I would suggest an FNAC to be done as soon as possible. Continue your medication as prescribed till then ,take care.