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Fig. 34 | Insights into Imaging

Fig. 34

From: Identifying the deceiver: the non-neoplastic mimickers of genital system neoplasms

Fig. 34

Decidualized endometriomas. A 24-year-old pregnant patient with previous history of menstrual irregularity presenting for routine obstetric US. a US showed a normal intrauterine pregnancy with biometry compatible with 12 weeks and 5 days gestation (not shown). However, there were bilateral (left not shown) adnexal complex cystic lesions (arrowheads) with solid components (asterisk). About 10 days later, axial T1W fat-suppressed (b) and coronal T2W (c) non-contrast pelvic MR images showed bilateral T1 hyperintense endometriomas (arrows) with T2 hypointense nodules (asterisk) in the lesions bilaterally (right not shown). She was managed expectantly. She was induced at 41 weeks and the baby was healthy. Follow-up MRI at 12 and 30 months post-partum (not shown) showed diminished size of the lesions with some complexity remaining on the left. Two years after the first delivery she delivered a second child uneventfully

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