{"paper_id":"72e8be24-3f26-4038-b0c7-22de17af5072","body_text":"ECR 2020 / C-12436\nAbdominal wall endometriosis: thinking outside the box\nCongress:\nECR 2020\nPoster Number:\nC-12436\nType:\nEducational Exhibit\nKeywords:\nNot applicable, Tissue characterisation, Hernia, Surgery, Education, Complications, Ultrasound, MR, CT, Musculoskeletal soft tissue, Genital / Reproductive system female, Abdomen, Genitourinary\nAuthors:\nC. D. O. Mira1, A. Guerra2; 1Loures/PT, 2Lisboa/PT\nDOI:\n10.26044/ecr2020/C-12436\nLearning objectives\nTo describe the common imaging findings of abdominal wall endometriosis, with focus on magnetic resonance;\nTo review typical location of abdominal wall endometriosis lesions and their particularities;\nTo highlight the useful findings in differential diagnosis with other entities.\nBackground\nEndometriosis consists in the presence of functional endometrial glands and stroma outside the uterine cavity. It affects as many as 10% of women of reproductive age and is found in 20%–50% of women with infertility and 90% of women with chronic pelvic pain. It most commonly involves the pelvis in the form of peritoneal superficial implants, deep endometriosis and endometriomas.\nAbdominal wall is the most frequent location of extrapelvic endometriosis, usually associated with a surgical procedure, commonlyacaesarean section. The most likely pathogenic mechanism is iatrogenic...\nFindings and procedure details\nCommon Imaging Findings\nAbdominal wall endometriosis may be identified at differentimaging modalities, both in symptomatic as well as asymptomatic patients. Imaging findings combined with clinical history are important for the diagnosis.\nUltrasound(US) is usually the first imaging examination. However, features are nonspecific and there iswide spectrum of differential diagnosis.\nComputer tomography (CT) may help to confirm the presence of a tissue or cystic mass in abdominal wall and defining its extent. Nevertheless, findings may also be nonspecific.\nMagnetic resonance imaging (MRI) is the cross-sectional modality...\nConclusion\nMR is a valuable imaging tool in the evaluation of endometriosis, providing a roadmap to surgery and allowing depiction of abdominal wall lesions. The abdominal wall should be systematically reviewed for potentially resectable lesions.\nPersonal information and conflict of interest\nC. D. O. Mira; Loures/PT - nothing to disclose A. Guerra; Lisbon/PT - nothing to disclose\nReferences\n1.Siegelman E, Oliver ER (2012). MR Imaging of Endometriosis: Ten Imaging Pearls. RadioGraphics; 32:1675–1691\n2. Chamié LP, Blasbalg R, Pereira RMA, Warmbrand , Serafini PC (2011). Findings of Pelvic Endometriosis at Transvaginal US, MR Imaging, and Laparoscopy. RadioGraphics; 31:E77–E100\n3. Machairiotis N, Stylianaki A, Dryllis G (2013). Extrapelvic endometriosis: a rare entity or an under diagnosed condition?. Diagnostic Pathology, 8:194\n4. Teha J, Leunga J, Dharb S, Athanasouc NA (2004). Abdominal wall endometriosis: comparative imaging on power Doppler ultrasound and MRI. Clinical Radiology Extra 59,...","source_license":"CC0","license_restricted":false}