Type:
Educational Exhibit
Keywords:
Pathology, Education and training, Cancer, eLearning, Education, Diagnostic procedure, MR-Functional imaging, MR-Diffusion/Perfusion, MR, Pelvis, Oncology, Genital / Reproductive system female
Authors:
G. Levy1, S. Taieb2, A.-S. Lemaire2, F. Narducci2, E. Leblanc2, L. Ceugnart 3; 1Nice/FR, 2Lille/FR, 3Lille Cedex/FR
DOI:
10.26044/ecr2019/C-3718
Findings and procedure details
Review of endometriosis-associated cancers MRI findings and pathologic correlation in:
- Endometrioma : enhancing mural nodules in an ovarian endometriosic cyst hyperintense on fat-sat T1-weighted images is suspicious,
with or without shading on T2.
Subtraction images can help,
like hyperintensity on DWI with restricted ADC.
Often no adenopathy neither peritoneal carcinomatosis.
Impact of the size of cyst (>10 cm) / mural nodule (>2 cm),
suspicious MRI signal and age (>40-50 yo). Fig. 3 Fig. 4 Fig. 5 Fig. 6 Fig. 8 Fig. 9 Fig. 10 Fig. 11 Fig. 12
- Parietal endometriosis : degeneration manifest as solid +/- cystic lesions with intermediate signal intensity on T1 and T2,
contrast-enhancement,
hyperintensity on DWI with restricted ADC.
Tissular part is often irregular,
with or without endometriotic bleeding microcyst. Fig. 13 Fig. 14 Fig. 15
- Deep pelvic endometriosis : all sites of endometriotic implants with suspicious MRI signs (signal and/or morphology).
Definitive diagnosis requires histologic findings. Fig. 16