Table 3.
Ultrasonography results and findings for breast cancer according to the tumor phenotype: TN (n = 105) or ER+/PR+/HER- (n = 105)
aFor mass-like lesions only (TN: n = 93; HR+/HER-2-: n = 86).
bProportions of microlobulated and circumscribed margins compared with proportions of indistinct, angular, or spiculated margins.
cCategories “Enhancement” and “No features” were grouped together to allow adequate group size for comparison.
Abbreviations: ER, estrogen receptor; PR, progesterone receptor; TN, triple negative.