the thyroid volume is about 18.4 cu cm which is slightly above the WHO set upper limit but 2.5 times larger than average thyroid volume for adult female.
enlarged heterogeneous gland is usually referring to the inflamed denser tissue of the thyroid associated with antibodies attacking it.
left lobe of the thyroid gland has a small nodule growth. since its smaller than 1 cm, there were no further comments - its not uncommon.
Explanation: your like most of us here, join the club (oh, you did LOL).