Figure 6: Brenner tumour with mucinous portion. Collision tumour. Axial T2- (a) and T1-weighted (b) images demonstrate an adnexal multilocular cystic mass with thin septations and a solid posterior hypointense portion (a, arrow). The cystic portion presents multiple loculi with different contents characterized by different signal intensity. The septations and the solid portion present an homogeneous and delayed enhancement on 3D fat-saturated T1-weighted Spoiled Gradient Echo images (c, arrow). The interface between the solid and the cystic mass is regular.