Case report

Impressive MRI findings of bilateral ovarian endometriomas
coexisting with ovarian metastases: the structural relationship
between the endometrioma and the ovary.

Mariko Kumazawa, MD1）,Kensuke Inamura, MD1）,Ganbold Tsengel, MD1）,
Chiyori Sakamoto, MD2）,Kensuke Ohikata, MD3）,Kazuyuki Ishida, MD3）,
Yasushi Kaji, MD1）

1）Department of Radiology,Dokkyo Medical University
2）Department of Obstetrics & Gynecology,Dokkyo Medical University
3）Department of Pathology,Dokkyo Medical University

Abstract
We report a case of a middle-aged woman who had radiologically impressive metastatic ovarian tumors with endometriomas. On initial MRI examination, we found bilateral endometriomas close to normalsized ovaries. Six months l ater, follow-up MRI revealed bilateral metastatic enlargement of ovaries wrapping around endometriomas. Pathologically, endometriotic implants have been reported to invade the parenchyma from the surface of the ovary, but this is rarely visualized by MRI. These impressive MRI outlines may be clues for revealing the development of endometrioma.

Key words :
Endometrioma, metastatic ovarian tumors, bilateral ovarian masses, MRI.