title: MR imaging of polypoid endometriosis of the ovary.
abstract: We report a case of polypoid endometriosis of the ovary and correlate magnetic resonance (MR) and pathological findings. The endometriosis appeared as multiple polypoid areas along the wall of the ovarian cystic lesion with hyperintensity on T₂-weighted images and slight hyperintensity on diffusion-weighted images. However, the polypoid areas did not yield low apparent diffusion coefficient (ADC) values on ADC map images. These MR findings were similar to the signal intensity of the uterine endometrium, reflecting the presence of abundant endometrial glands.
authors.affiliation: Department of Imaging Diagnosis, Saitama Medical University, International Medical Center, Saitama, Japan. 8kozawa@saitama-med.ac.jp
authors.forename: Eito
authors.initials: E
authors.lastname: Kozawa
authors.forename: Kaiji
authors.initials: K
authors.lastname: Inoue
authors.forename: Noriaki
authors.initials: N
authors.lastname: Iwasa
authors.forename: Keiichi
authors.initials: K
authors.lastname: Fujiwara
authors.forename: Masanori
authors.initials: M
authors.lastname: Yasuda
authors.forename: Junji
authors.initials: J
authors.lastname: Tanaka
authors.forename: Fumiko
authors.initials: F
authors.lastname: Kimura
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D016889:Endometrial Neoplasms / Q000473:pathology*; D004715:Endometriosis / Q000473:pathology*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D010051:Ovarian Neoplasms / Q000473:pathology*