Table 3 Different imaging features of benign and malignant BAF

Number of lesions

Solitary

Multiple

DWI signal

—

Restricted diffusion

Margin

Well-defined

Obscure

Internal septa

Multilocular

Unilocular

Enhancement

Delayed enhancement

Marked enhancement in the arterial phase followed by wash-out in the venous phase

Additional features

—

Peripheral edematous halo, pseudocapsule formation