Fig. 19
From: Mature cystic teratoma of the ovary: a cutting edge overview on imaging features
Axial T1-weighted MR image of a 31-year-old female with mature cystic teratoma (a) (same case as in Fig. 17). A floating ball is seen in the interface of the high signal intensity fat and low signal intensity aqueous fluid layer (arrow). Axial T2-weighted image (b) shows chemical shift artefact in and around the ball (arrow). In the macroscopic specimen (c), the floating ball corresponds to whitish creamy material containing hair and keratin