I can't really speak to your ultrasound results; however, I would like to see your blood test results and their reference ranges shown on the lab report.
Thyroiditis would indicate, either Hashimoto's or Graves Disease. Your thyroid seems larger than normal (due to the thyroiditis), which means you have a goiter (swollen thyroid). Have any other tests been done? What blood tests were done to determine thyroiditis and what were the results, with reference ranges?