Sagittal T2-weighted MR image of a 56-year-old female (same case as in Fig. 15) with mature cystic teratoma shows chemical shift artefact (arrowheads) in the interface of two different hyperintense layers. Note that the complete gravity-dependent layering of the fatty component in the cranial part is not formed regarding the high viscosity. A floating rounded structure is also seen in the cystic lumen (arrow)