Figure 1
A 60-year-old female patient with luteinized thecoma. (a) Axial T1WI revealed a cystic solid mass with hypo–isointense signal in the right adnexal region (arrow). (b) On sagittal T2WI, the cystic component of the tumor gave a homogeneous hyperintense signal. Note that degenerated uterine fibroids (arrowhead) were also detected. (c) On fat-suppressed T2WI, the signal of the mass was similar to that in (b). (d) On contrast-enhanced fat-suppressed T1WI, the solid components (arrow) of the lesion showed moderate enhancement, like that of the myometrium. (e) On DWI-MRI (b = 700 s/mm2), the upper part of lesion appears as a homogeneous isointense signal and the lower part as a hyperintense signal. (f) ADC map shows the marked hyperintense signal of the cystic components (T2 shine-through effect) and the isointense signal of the solid components. The ADC values at the corresponding sites are 2.82 × 10–3 mm2/s (cyst) and 1.00 × 10–3 mm2/s (solid).