title: Clear cell adenocarcinoma arising from clear cell adenofibroma of the ovary: value of DWI and DCE-MRI.
abstract: Clear cell adenofibroma (CCAF) is a rare surface epithelial-stromal tumor of the ovary and recently considered another precursor of clear cell adenocarcinoma (CCA) other than endometrioma. We report magnetic resonance (MR) findings of a borderline CCAF that contained a small CCA focus. The tumor manifested a characteristic "black sponge" appearance. The CCA focus showed high signal intensity on diffusion-weighted imaging (DWI) and early enhancement on dynamic contrast-enhanced (DCE) MR imaging (DCE-MRI), and the CCAF components showed low signal intensity on DWI and gradually increasing contrast enhancement on DCE-MRI.
authors.affiliation: Department of Radiology, University of Tokushima.
authors.forename: Mayumi
authors.initials: M
authors.lastname: Takeuchi
authors.forename: Kenji
authors.initials: K
authors.lastname: Matsuzaki
authors.forename: Hisanori
authors.initials: H
authors.lastname: Uehara
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Furumoto
authors.forename: Masafumi
authors.initials: M
authors.lastname: Harada
mesh_terms: D018262:Adenocarcinoma, Clear Cell / Q000473:pathology*; D002471:Cell Transformation, Neoplastic / Q000473:pathology*; D062625:Cystadenofibroma / Q000473:pathology*; D003937:Diagnosis, Differential; D038524:Diffusion Magnetic Resonance Imaging / Q000379:methods*; D005260:Female; D006801:Humans; D008875:Middle Aged; D010051:Ovarian Neoplasms / Q000473:pathology*