{"paper_id":"5a0f0e65-ddb4-435c-ba8e-38004583b6ef","body_text":"Abstract\nEndometriosis is a complex disease created by the presence of ectopic endometrial tissue in the peritoneal cavity or adnexa.Cysts of the greater omentum, or omental cysts are a rare condition. Composed of ectopic endometrial tissue located in the greater omentum, they are usually asymptomatic and rarely cause symptoms. We present a rare case report herein of a 38-year-old female who presented to the Emergency Department complaining of severe diffuse abdominal pain, mainly in the epigastrium, with associated vomiting. A similar episode had previously been experienced two months earlier with spontaneous resolution. Interestingly, the patient was on the third day of her menses. Ultrasonography showed a small amount of free fluid in the pouch of Douglas. Computed tomography of the abdomen revealed a 3.5 cm cystic lesion in the anatomic region of the omentum in contact with bowel loops. Due to worsening of the patient's symptoms, an urgent laparotomy was performed. A lower midline incision was made and a chocolate cyst contained within the upper portion of the greater omentum was identified. Histopathology confirmed the diagnosis of omental endometriosis. The patient was referred to the gynaecology department for further treatment.\nSimilar content being viewed by others\nReferences\nKumar S, Agrawal N, Khanna R, Khanna AK. Giant lymphatic cyst of omentum: a case report. Cases J. 2009;2:23.\nMeasday B. Omental Endometriosis. Br Med J. 1961;1(5223):409.\nAyoade BA, Olawoye OA, Salami BA, Tade AO, Musa AA, Banjo AAF, Agboola AJ, Adebayo SB. Omental Cyst, An usual cause of cachexia. Nigerian Medical Practitioner. 2007;51:107–9\nHoward Jones III. Gynecologic Surgery. In: Townsend C, Beauchamp D, Evers M, Mattox K, editors. Sabiston Textbook of Surgery: the biological basis of modern surgical practice. Philadelphia: Elsevier Saunders; 2012. p.2016.\nHamilton, C, Staney M, Gregory T, Kohn E. Gynecology. In: Brunicardi FC Editor-in-Chief. Schwartz’s Principles of Surgery. USA: McGraw Hill; 2015. p. 1689.\nMounsey AL, Wilgus A, Slawson DC. Diagnosis and management of endometriosis. Am Fam Physician. 2006;74:594–600.\nAuthor information\nAuthors and Affiliations\nCorresponding author\nRights and permissions\nAbout this article\nCite this article\nMarinis, A., Apostolopoulos, A. & Paschalidis, N. Haemorrhagic endometrial cyst of the greater omentum presenting as an abdominal emergency. Hellenic J Surg 87, 488–489 (2015). https://doi.org/10.1007/s13126-015-0264-8\nReceived:\nAccepted:\nPublished:\nIssue date:\nDOI: https://doi.org/10.1007/s13126-015-0264-8","source_license":"CC0","license_restricted":false}