{"paper_id":"df4e90d0-a184-42c0-850d-5b5033d4b9ab","body_text":"ECR 2015 / C-1264\nShining light in a dark landscape: MRI evaluation of unusual endometriosis localization.\nThis poster is published under an open license. Please read the disclaimer for further details.\nCongress:\nECR 2015\nPoster Number:\nC-1264\nType:\nEducational Exhibit\nKeywords:\nTissue characterisation, Imaging sequences, MR, Pelvis, Genital / Reproductive system female, Abdomen\nAuthors:\nB. Gui, A. L. Valentini, V. Ninivaggi, M. Miccò, M. Giuliani, L. Bonomo; Rome/IT\nDOI:\n10.1594/ecr2015/C-1264\nLearning objectives\nTo help radiologists in correctly identifying and characterizing unusual endometriosis localization on magnetic resonance images (MRI).\nBackground\nEndometriosis is a systemic disease that is defined as presence of endometrial glands and stroma outside the uterine cavity that affects approximately 10 to 20% of women in their reproductive–age [1]\nThe lesions are characterized by intra-lesional recurrent bleeding during menses because of the hormonal responsiveness of ectopic endometrial tissue with resulting fibrosis.\nTypical symptoms are cyclic or chronic pelvic pain,\ndysmenorrhea,\ndyspareunia,\npain during defecation or urinating.\nUnusual endometriosis localizations may be associated with more specific symptoms depending on the site of the localization....\nFindings and procedure details\nThe MRI signal of hemorrhagic lesions could be various and is influenced by the age of hemoglobin.\nMRI should be performed after the 8th day from the menstruation because of the blood degradation products that show active endometriosis localizations as very bright lesions on T1-weighted images [5].\nThe use of fat saturation is recommended.\nChemically frequency-selective fat saturation suppresses the high signal intensity of fat tissue,\nimproving the dynamic range of T1-weighted images and enhancing differences among non-fat T1-weighted hyperintense structures.\nThat’s why it magnifies...\nConclusion\nRadiologists should consider this wide range of locations in patients with clinical suspect of endometriosis,\nbecause the correct diagnosis is extremely helpful for a correct treatment strategy.\nTreatment of endometriosis can be pharmacological or surgical.\nWhen surgery is indicated a complete excision of all lesions is recommended and a correct interpretation of MRIcould improve diagnosis and complete eradication with significant quality of life improvement for patients.\nPersonal information\nDepartment of Bioimaging and Radiological Sciences,\nCatholic University of the Sacred Heart,\nAgostino Gemelli Hospital,\nLargo Agostino Gemelli 8,\nRome,\nItaly\n[email protected]\nReferences\n[1] Novellas S,\nChassang M,\nBouaziz J,\nDelotte J,\nToullalan O,\nChevallier EP (2010) Anterior pelvic endometriosis: MRI features.\nAbdom Imaging 35:742-749. doi: 10.1007/s00261-010-9600-1\n[2] Siegelman ES,\nOliver ER.MR imaging of endometriosis: ten imaging pearls.Radiographics.\n2012 Oct;32(6):1675-91.\ndoi: 10.1148/rg.326125518.\n[3] Coutinho A Jr,\nBittencourt LK,\nPires CE,\net al.\n(2011) MR imaging in deep pelvic endometriosis: a pictorial essay.\nRadiographics 31:549–567.\ndoi:10.1148/rg.312105144\n[4] Woodward PF,\nSohaey R,\nMezzetti TP (2001) Endometriosis: radiologic–pathologic correlation.\nRadiographics 21:193–216\n[5] Kinkel K,\nFrei KA,\nBalleyguier C,\nChapron C.Diagnosis of...","source_license":"CC0","license_restricted":false}