Figure 2: Hypoechogenicity Figure 2: Hypoechogenicity. A 35-year-old female with Hashimoto thyroiditis presented with thyroid mass. Transverse gray scale ultrasound image of the thyroid gland illustrates the parenchyma is iso- to hypoechoic to the adjacent strap musculature (*). (These figures are reproduced with permission from Swapnil Patel, Ellen Giampoli, Daniel Oppenheimer, Simone Montoya, Andrey Rupasov, Vikram Dogra. Sonographic Features of Diffuse Hashimoto Thyroiditis: Determining Sensitivity of Features and Predictors of Malignancy. Am J Sonogr 2018 1(6) 1-7)