{"paper_id":"1201fe1e-be9f-4d6f-bda4-65e67a91e235","body_text":"ECR 2010 / C-1202\nEndometriosis: A pictorial review by using magnetic resonance and trans-vaginal sonography\nCongress:\nECR 2010\nPoster Number:\nC-1202\nType:\nEducational Exhibit\nKeywords:\nGenital / Reproductive system female, Obstetrics (Pregnancy / birth / postnatal period), Pelvis\nAuthors:\nL. Saba, S. Guerriero, R. Sulcis, M. Pilloni, G. Melis, G. Mallarini; Cagliari/IT\nDOI:\n10.1594/ecr2010/C-1202\nLearning objectives\nThe purpose of this work is to give a comprehensive pictorial review of endometriosis by using MR imaging and trans-vaginal sonography.\nBackground\nEndometriosis is one of the most prevalent conditions in women, in particular in the reproductive age group. The mean age at diagnosis is 25-29 years, but it is often greater in women who present with infertility rather than pelvic pain. Endometriosis is one of the most common gynaecological diseases, affecting more than 5.5 million women in North America alone.Endometriosis is defined as the presence of endometrial issue utside the endometrium and the myometrium and the most common locations of endometriosis are the ovaries and the...\nImaging findings OR Procedure details\nPhysiopathology and pathology of endometriosis To understand the MRI signal characteristic of endometriosis, it is important to remember that these nodules, like the intrauterine endometrium, are subject to hormonal variations and therefore present chronic bleeding. The T1 hyper intensity corresponds to the signal of the sub-acute hemorrhagic lesions whereas the low T2 and intermediate-to-low T1 signal to the fibrous stroma. The presence of a hemorrhagic nodule is a very specific finding for endometriosis but it is associated to low sensitivity because nodules may be not...\nConclusion\nEndometriosis is a painful disorder of the female reproductive system and this pathology is frequently associated with pain and infertility. In this exhibit we describe MRI and TVS imaging features suggestive of endometriosis and their diagnostic performance by analyzing diagnostic pitfalls and differential diagnosis with other pathologies.\nReferences\nSivyer P. Pelvic Ultrasound in women. World J Surg 2000;24:188-97.Freimanis MG, Jones AF. Transvaginal Ultrasonography. Radiol Clin Noth Am. 1992;30:955-976.Mais V, Guerriero S, Ajossa S, Angiolucci M, Paoletti AM, Melis GB. The efficiency of transvaginal ultrasonography in the diagnosis of endometrioma. Fertil Steril 1993; 60:776–780.Bazot M, Detchev R, Cortez A, Amouyal P, Uzan S, Darai E. Transvaginal sonography and rectal endoscopy sonography for the assessment of pelvic endometriosis: a preliminary comparison. Hum Reprod 2003;18:1686-92.Bazot M, Thomassin I, Hourani R, Cortez A, Darai E. Diagnostic accuracy...","source_license":"CC0","license_restricted":false}