Fig. 3From: Insufficiency fracture of the supra-acetabulum that required differentiation from a pathological fracture secondary to a malignant bone tumor: a case reporta Contrast-enhanced MRI, coronal plane. Black line indicates the level of the axial plane (b–e). b Pre-contrast-enhanced MRI, axial plane. c–e Contrast-enhanced MRI, axial plane. Black arrow indicates time passing after administration of contrast medium. They showed the lesion gradually enhancedBack to article page