{"paper_id":"73208b83-13a0-4af3-9a0d-5f6f17e9e975","body_text":"Abstract\nEndometriosis, an important gynecological disorder of reproductive women, affects most commonly the ovaries and less frequently the gastrointestinal tract, chest, urinary tract, and soft tissues. Endometriosis classically appears on MRI as a mass with a large cystic component and variable signal intensities on T1- and T2-weighted images due to the presence of variable degradation of hemorrhagic products. Endometriosis in an atypical location, an infiltrative appearance and without cystic-hemorrhagic components has rarely been described. We report on a 33-year-old woman with cyclic sciatica due to histologically documented infiltrative endometriosis involving the area of the left sciatic notch.\nSimilar content being viewed by others\nReferences\nWoodward PJ, Sohaey R, Mezzetti TP. Endometriosis: radiologic-pathologic correlation. Radiographics 2001; 21:193–216.\nEl-Yahia AW. Laparoscopic evaluation of apparently normal infertile woman. Aust N Z J Obstet Gynaecol 1994; 34:440–442.\nAscher SM, Outwater EK, Reinhold C. Adnexa. In: Semelka RC, Ascher SM, Reinhold C, eds. MRI of the abdomen and pelvis. New York: Wiley-Liss, 1997; 661–715.\nRychlik DF, Bieber EJ. Thoracic endometriosis syndrome resembling pulmonary embolism. J Am Assoc Gynecol Laparosc 2001; 8:445–448.\nJubanyik KJ, Comite F. Extrapelvic endometriosis. Obstet Gynecol Clin North Am 1997; 24:411–440.\nCottier JP, Descamps P, Sonier CB, Rosset P. Sciatic endometriosis: MR evaluation. AJNR Am J Neuroradiol 1995; 16:1399–1401.\nFedele L, Bianchi S, Raffaelli R, Zanconato G, Zanette G. Phantom endometriosis of the sciatic nerve. Fertil Steril 1999; 72:727–729.\nTorkelson SJ, Lee RA, Hildahl DB. Endometriosis of the sciatic nerve: a report of two cases and a review of the literature. Obstet Gynecol 1988; 71: 473–477.\nRice VM. Conventional medical therapies for endometriosis. Ann N Y Acad Sci 2002; 955:343–352.\nSchlicke CP. Ectopic endometrial tissue in the thigh. JAMA 1946; 132:445.\nPapapietro N, Gulino G, Zobel BB, Di Martino A, Denaro V. Cyclic sciatica related to an extrapelvic endometriosis of the sciatic nerve: new concepts in surgical therapy. J Spinal Disord Tech 2002;15:436–439.\nVilos GA, Vilos AW, Haebe JJ. Laparoscopic findings, management, histopathology, and outcome of 25 women with cyclic leg pain. J Am Assoc Gynecol Laparosc 2002; 9:145–151.\nCalzada-Sierra DJ, Fermin-Hernandez E, Vasallo-Prieto R, Gomez-Fernandez L, Santana de la Fe A. Bilateral cyclic sciatica caused by endometriosis. Apropos of a case. Rev Neurol 1999; 29:34–36.\nBinkovitz LA, King BF, Ehman RL. Sciatic endometriosis: MR appearance. J Comput Assist Tomogr 1991; 15:508–510.\nFishman EK, Scatarige JC, Satsouk FA, Rosenhein NB, Siegelman SS. Computed tomography of endometriosis. J Comput Assist Tomogr 1983; 7:257–264.\nAuthor information\nAuthors and Affiliations\nCorresponding author\nRights and permissions\nAbout this article\nCite this article\nYekeler, E., Kumbasar, B., Tunaci, A. et al. Cyclic sciatica caused by infiltrative endometriosis: MRI findings. Skeletal Radiol 33, 165–168 (2004). https://doi.org/10.1007/s00256-003-0663-8\nReceived:\nRevised:\nAccepted:\nPublished:\nIssue date:\nDOI: https://doi.org/10.1007/s00256-003-0663-8","source_license":"CC0","license_restricted":false}