{"paper_id":"dbb6888d-2d81-4f4a-9892-4ced5f7c2177","body_text":"Abstract\nPolypoid endometriosis is a distinctive variant of endometriosis with histological features simulating those of endometrial polyps. Müllerianosis is characterized by the presence of lesions at any site containing admixtures of endosalpingiosis, endometriosis, and endocervicosis. Here, we report a rare case of polypoid endometriosis of the ovary with müllerianosis of the pelvic lymph nodes in a 44-year-old woman without a past history of pelvic surgery. Magnetic resonance imaging revealed an ovarian tumor containing papillary nodules up to 3.0 cm in diameter and left pelvic lymph node enlargement. Nodules in ovarian tumor showed heterogeneous high intensity on T2-weighted image and high intensity on diffusion-weighted image and were mildly enhanced by gadolinium contrast material. Enlarged lymph node was markedly enhanced by gadolinium. We considered polypoid endometriosis in the differential diagnosis according to the results of the magnetic resonance imaging, and polypoid endometriosis was included in intraoperative consultation, however, ovarian carcinoma with lymph node metastasis could not be denied. According to histological examination, the final diagnosis was determined as polypoid endometriosis with glandular hyperplasia of the left ovary and müllerianosis in the obturator lymph nodes. To the best of our knowledge, this is the first report of polypoid endometriosis and müllerianosis of the pelvic lymph node.\nSimilar content being viewed by others\nReferences\nMostoufizadeh M, Scully RE (1980) Malignant tumors arising in endometriosis. Clin Obstet Gynecol 23:951–963\nYoung RH, Clement PB (1996) Mülleriannosis of the urinary bladder. Mod Pathol 9:731–737\nBranca G, Barresi V (2014) Müllerianosis of the urinary bladder: a rare tumorlike lesion. Arch Pathol Lab Med 138:432–436\nLi WM, Yang SF, Lin HC et al (2007) Müllerianosis of ureter: a rare cause of hydronephrosis. Urology 69:1208.e9–1208.e11\nLim S, Kim JY, Park K et al (2003) Müllerianosis of the mesosalpinx: a case report. Int J Gynecol Pathol 22:209–212\nSinkre P, Hoang MP, Albores-Saavedra J (2002) Müllerianosis of inguinal lymph nodes: report of a case. Int J Gynecol Pathol 21:60–64\nBarresi V, Cerasoli S, Vitarelli E et al (2006) Spinal intradural müllerianosis: a case report. Histol Histopathol 21:1111–1114\nJayalakshmy PS, Velusamy S, Augustine J (2014) Multiloculated cystic mullerianosis of uterus: a case report. J Turk Ger Gynecol Assoc 15:197–200\nParker RL, Dadmanesh F, Young RH et al (2004) Polypoid endometriosis: a clinicopathologic analysis of 24 cases and a review of the literature. Am J Surg Pathol 28:285–297\nYamada Y, Miyamoto T, Horiuchi A et al (2014) Polypoid endometriosis of the ovary mimicking ovarian carcinoma dissemination: a case report and literature review. J Obstet Gynaecol Res 40:1426–1430\nKataoka M, Togashi K, Koyama T et al (2002) MR imaging of müllerian mucinous borderline tumors arising from endometriotic cyst. J Comput Assist Tomogr 26:532–537\nHansen K, Simon RA, Lawrence WD et al (2012) Unilateral pelvic mass presenting in postmenopausal patients: report of two unusual cases. Ann Diagn Pathol 16:298–301\nDonne C, Vidal M, Buttin X et al (1998) Müllerianosis of the urinary bladder: clinical and immunohistochemical findings. Histopathology 33:290–292\nKoren J, Mensikova J, Mukensnabl P et al (2006) Müllerianosis of the urinary bladder: report of a case with suggested metaplastic origin. Virchows Arch 449:268–271\nBatt RE, Smith RA, Buck Louis GM et al (2007) Müllerianosis. Histol Histopathol 22:1161–1166\nAuthor information\nAuthors and Affiliations\nCorresponding author\nEthics declarations\nConflict of interest\nThe authors declare that they have no conflict of interest.\nAbout this article\nCite this article\nIida, Y., Tabata, J., Yorozu, T. et al. Polypoid endometriosis of the ovary and müllerianosis of pelvic lymph nodes mimicking an ovarian carcinoma with lymph node metastasis. Int Canc Conf J 6, 145–148 (2017). https://doi.org/10.1007/s13691-017-0295-9\nReceived:\nAccepted:\nPublished:\nIssue date:\nDOI: https://doi.org/10.1007/s13691-017-0295-9","source_license":"CC0","license_restricted":false}