Table 1.
Characteristics comparison between malignant and benign PTBs.
Fig 1.
Receiver operating characteristic (ROC) curves for age (AUC:0.85; cut-off value: 46.5 years old), size (AUC:0.74; cut-off value:4.45cm).
Table 2.
Diagnostic performance of age and size in differentiating PTBs.
Fig 2.
a) A 44 years old woman with a 3.2cm PTB in her left breast; b) A 32 years old woman with a 2.6cm PTB in her right breast; c) A 52 years old woman with a 2.6 cm PTB in her left breast; d) A 28 years old women with a 9.6cm PTB in her right breast. All these images showed regular tumors with homogeneous inner echo, without liquefaction in the tumor (even in a 9.6cm tumor).
Fig 3.
a) A 47 years old woman with a 4.4cm PTB in her left breast; b) A 40 years old woman with a 4.7cm PTB in her left breast; c) A 58 years old woman with a 10.4 cm PTB in her right breast; d) A 60 years old women with a 3.3cm PTB in her right breast. All these images showed irregular tumors with heterogeneous inner echo, with liquefaction in the tumor (star). Patients’ age is elder than that of benign PTB patients.
Table 3.
Multivariate analysis with significant factors.