Type 2 dynamic curves: A diagnostic dilemma

Figure 1 A 63-year-old patient. A: Hyperintense lesion on T2 weighted image (WI) in the right breast; B: The lesion is enhanced on post-contrast T1WI; C: The dynamic curve of the lesion is type 2. Pathological diagnosis is invasive ductal carcinoma.

Figure 2 A 37-year-old patient. A: Hyperintense lesion on T2 weighted image (WI) in the right breast; B: The lesion is enhanced on post-contrast T1WI; C: The dynamic curve of the lesion is type 2. Pathological diagnosis is fibroadenoma.

Figure 3 Receiver operating characteristic analysis graph by combining type 2 curves and morphological features for predicting malignancy. AUC: Area under the curve.