title: Lesions of the ovary with T1-hypersignal.
abstract: Pelvic magnetic resonance imaging (MRI) has been used successfully to diagnose ovarian masses that cannot be adequately evaluated using pelvic ultrasound. T1 hyperintensity is a common finding in an ovarian mass and has important diagnostic implications. The aims of this review are to list the substances that may produce high signal intensity on T1-weighted MRI, to explain the physical basis for causes of the high T1 signal intensity, and to describe common and uncommon T1 hyperintense ovarian lesions. The morphological findings, the imaging features of the additional sequences, and clinical variables can help in the differential diagnosis, and in some cases, enable a specific diagnosis, leading to appropriate management of the patient.
authors.affiliation: Department of Radiology, Centre Hospitalier Lyon Sud, chemin du grand revoyet, 69310 Pierre Bénite, France. Electronic address: aurelie_chabrol@yahoo.fr.
authors.forename: A
authors.initials: A
authors.lastname: Chabrol
authors.affiliation: Department of Radiology, Centre Hospitalier Lyon Sud, chemin du grand revoyet, 69310 Pierre Bénite, France.
authors.forename: P
authors.initials: P
authors.lastname: Rousset
authors.affiliation: Department of Radiology, Centre Hospitalier Lyon Sud, chemin du grand revoyet, 69310 Pierre Bénite, France.
authors.forename: M
authors.initials: M
authors.lastname: Charlot
authors.affiliation: Department of Radiology, Centre Hospitalier Lyon Sud, chemin du grand revoyet, 69310 Pierre Bénite, France.
authors.forename: F
authors.initials: F
authors.lastname: Chateau
authors.affiliation: Department of Radiology, Centre Hospitalier Lyon Sud, chemin du grand revoyet, 69310 Pierre Bénite, France.
authors.forename: F
authors.initials: F
authors.lastname: Cotton
authors.affiliation: Department of Gynaecological and Oncological Surgery-Obstetrics, Centre Hospitalier Lyon Sud, chemin du grand revoyet, 69310 Pierre Bénite, France.
authors.forename: F
authors.initials: F
authors.lastname: Golfier
authors.affiliation: Department of Radiology, Centre Hospitalier Lyon Sud, chemin du grand revoyet, 69310 Pierre Bénite, France.
authors.forename: F
authors.initials: F
authors.lastname: Rety
mesh_terms: D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D010049:Ovarian Diseases / Q000175:diagnosis; D010051:Ovarian Neoplasms / Q000175:diagnosis*; D010053:Ovary / Q000473:pathology*