@article{oai:repo.qst.go.jp:00044899,
 author = {Tamai, Ken and Koyama, Takashi and Saga, Tsuneo and Kido, Aki and Kataoka, Masako and Umeoka, Shigeaki and et.al and 佐賀 恒夫},
 issue = {12},
 journal = {European Radiology},
 month = {Dec},
 note = {Abstract In reproductive women, various physiologic conditions can cause morphologic changes of the ovary, resembling pathologic conditions. Benign ovarian diseases can also simulate malignancies. Magnetic resonance imaging (MRI) can play an important role in establishing accurate diagnosis. Functional cysts should not
be confused with cystic neoplasms. Corpus luteum cysts typically have a thick wall and are occasionally hemorrhagic. Multicystic lesions that may mimic cystic neoplasms include hyperreactio luteinalis, ovarian hyperstimulation syndrome, and polycystic ovary syndrome. Recognition of clinical settings can help establish
diagnosis. In endometrial cysts, MRI usually provides specific diagnosis; however, decidual change during pregnancy should not be confused with secondary neoplasm. Peritoneal inclusion cysts can be distinguished from cystic neoplasms by recognition
of their characteristic configurations. Ovarian torsion and massive ovarian edema may mimic solid malignant tumors. Recognition of normal follicles and anatomic structures is useful in diagnosing these conditions. In pelvic inflammatory diseases, transfascial spread of the lesion should not be confused with invasive malignant tumors. Radiologic identification of abscess formation can be a diagnostic
clue. Many benign tumors, including teratoma, Brenner tumor, and sexcord stromal tumor, frequently show characteristic MRI features. Knowledge of MRI features of these conditions is essential in establishing accurate diagnosis and determining
appropriate treatment.},
 pages = {2700--2711},
 title = {MR features of physiologic and benign conditions of the ovary},
 volume = {16},
 year = {2006}
}