TPO and Hashimoto thyroiditis: However, no significant differences in lobulation, location, margins, shape, composition, echogenicity, internal echo homogeneity, microcalcifications, BMI, presence of Hashimoto’s thyroiditis, thyroid function laboratory markers (FT3, FT4, TSH), TPO-AB, BRAF V600E mutation, or TNM staging (all P > 0.05) were detected between the two groups (Table 2).