Fig. 1

The axial slice of the contrast-enhanced abdominopelvic CT (0.625 mm slice thickness) scan illustrates a significant lesion emanating from the left adnexal region extending to the abdominal midline. The lesion features an oval-shaped component characteristic of a mature cystic teratoma, evident by its fat-fluid levels (highlighted by the white arrow). Directly anterior to this, there is a lobulated and heterogeneous solid component (indicated by the white star), which is suggestive of malignant transformation