Endometriosis: Spectrum of MR findings in pelvic and extrapelvic locations

Tissue characterisation, Structured reporting, Image compression, Diagnostic procedure, MR, Genital / Reproductive system female Authors: Z. Cobo Tabar1, A. Coll i Prat2, J. Gonzalez Ocio3, M. Salomón de la Vega1, E. GOROSTIZA BERMEJO4, M. López Ferreras2, A. I. Ezquerro Imaz2, A. R. Gil1, A. Urresola Olabarrieta1; 1cruces-barakaldo/ES, 2Barakaldo/ES, 3Bilbao/ES, 4Baracaldo/ES DOI: 10.26044/ecr2019/C-3573 Learning objectives To review the spectrum of MRI findings in pelvic endometriosis. To describe and illustrate different cases of atypical - extrapelvic endometriosis locations.

Endometriosis is a common estrogen-dependent gynecologic disorder of unclear cause defined by the presence of ectopic functional endometrial tissue outside the uterine cavity. The most common location of this disease is the pelvic cavity, although it can be found nearly anywhere in the body. They are three forms of presentation within the pelvic cavity: the superficial implants on the peritoneal surface, ovarian endometriomas, and deep infiltrating endometriosis. Patients may be asymptomatic or suffer a variety of symptoms that include pelvic pain, dysmenorrhea, dyspareunia or infertility.... Findings and procedure details TABLE OF CONTENTS 1. MRI Technique 2. Pelvic locations 2.1. Endometriomas 2.2. Superficial implants 2.3. Deep pelvic endometriosis A. Anterior compartment B. Middle compartment C. Posterior compartment 3.Malignant transformation 4. Post-surgical findings 5. Extrapelvic locations 5.1. Muscular and subcutaneous endometriosis 5.2. Umbilicus 5.3. Nerves 1. MRI TECHNIQUE Patient preparation: Rectal enema. Anti-peristaltic drugs before the test to reduce the artifacts caused by the intestinal peristalsis. Rectal and vaginal opacification with aqueous gel, to facilitate the detection of implants in the wall of these organs. Moderate...

Radiologistsplay a key role in the diagnosis of endometriosis, and thus in an optimate therapeutic approach. Hence the importance of being familiar not only with the image findings of typical pelvic locations including the signs of malignant transformation and post-surgical changes, but also with extrapelvic spectrum of signs.

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