Umbilical endometriosis: a case report and review of the literature

Huber Díaz Fuentes, Carlos De Jesús Cocom Quijano, Christian Rodríguez Negrete
In: International Journal of Research in Medical Sciences · 2021 · vol. 9(5) , pp. 1485 · doi:10.18203/2320-6012.ijrms20211890 · W3157163505
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⚙ AI-generated summary by gemini-2.5-flash-lite, 2026-06-07 ⓘ

This case report describes a 32-year-old patient with secondary umbilical endometriosis presenting with an umbilical mass, pain, and catamenial bleeding following surgery.

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⚙ AI-generated deep summary by claude@2026-06, 2026-06-07 · read from full text ⓘ

This paper presents a case report of a 32-year-old patient with secondary umbilical endometriosis developing after a recent surgical procedure, with an umbilical mass, pain, and catamenial bleeding from the umbilicus, and it also reviews published literature on umbilical endometriosis. The authors describe that endometriosis involves endometrial glands and stroma outside the uterus and note that while most cases are pelvic, extragenital sites including the umbilicus can occur. The key takeaways are the clinical presentation consistent with umbilical endometriosis and the literature-supported framing that umbilical involvement may be linked to prior procedures (in this case, secondary disease). The main limitation is that, as a single case report with a literature review, it does not provide new systematic evidence beyond summarizing reported cases. This paper is centrally about endometriosis — specifically umbilical endometriosis presenting as a postoperative secondary case with catamenial umbilical bleeding and a literature review of the condition.

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Abstract

Endometriosis is defined as the presence of endometrial glands and stroma outside the uterus. It affects 7-10% of women of reproductive age. Most commonly, the condition affects pelvic organs, however, 12% are encountered at extragenital sites, such as lungs, diaphragm, or umbilicus. Authors present the case of a 32 year old patient presenting with secondary umbilical endometriosis, after a recent surgical procedure. Manifesting umbilical mass, pain and catamenial bleeding from the umbilicus.
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Umbilical endometriosis: a case report and review of the literature DOI: https://doi.org/10.18203/2320-6012.ijrms20211890Keywords: Endometriosis, Umbilical endometriosis, Umbilical endometrioma, UmbilicusAbstract Endometriosis is defined as the presence of endometrial glands and stroma outside the uterus. It affects 7-10% of women of reproductive age. Most commonly, the condition affects pelvic organs, however, 12% are encountered at extragenital sites, such as lungs, diaphragm, or umbilicus. Authors present the case of a 32 year old patient presenting with secondary umbilical endometriosis, after a recent surgical procedure. Manifesting umbilical mass, pain and catamenial bleeding from the umbilicus. Metrics References Fernandes H, Marla NJ, Pailoor K, Kini R. Primary umbilical endometriosis- diagnosis by fine needle aspiration. J Cytol. 2011;28(4):214-6. González-Hinojosa J, Solano-Calvo J, Valenzuela-Ruiz P, Martínez-Gómez. Endometriosis umbilical primaria. Clin Invest Gin Obst. 2013;40(5):227-30. Kuladeepa AV, Prashanth A, Lakshman IK. Villar’s nodule: a rare case report. J Clinic Diagnost Res. 2012;6(5): 881-3. Kydd AR, Patel D, Schwarz J, Joseph D, Mitchell G, Strasswimmer JM, et al. Umbilical endometriosis mistaken for a keloid in a premenopausal woman of Caribbean descent. JAAD Case Rep. 2016;2(3):219-21. Vaidya KA, Adiga P, Lakshman IK. Villar’s nodule: a rare case report. J Clinic Diagnost Res. 2012;6(5):881-3. Krumbholz A, Frank U, Norgauer J, Ziemer M. Umbilical endometriosis. J Dtsch Dermatol Ges. 2006;4(3):239-41. Papavramidis TS, Sapalidis K, Michalopoulos N, Karayanopoulou G, Raptou G, Tzioufa V, et al. Spontaneous abdominal wall endometriosis: a case report. Acta Chir Belg. 2009;109(6):778-81. González-Hinojosa J, Solano-Calvo J, Valenzuela-Ruiz P, Martínez-Gómez, et al. Endometriosis umbilical primaria. Clin Invest Gin Obst. 2013;40(5):227-30. Taniguchi F, Hirakawa E, Azuma Y, Uejima C, Ashida K, Harada T. Primary umbilical endometriosis: unusual and rare clinical presentation. Case Rep Obstet Gynecol. 2016;9302376. Calagna G, Perino A, Chianetta D, Vinti D, Triolo MM, Carlo Rimi C, et al. Primary umbilical endometrioma: Analyzing the pathogenesis of endometriosis from an unusual localization. Taiwan J Obstet Gynecol. 2015;54(3):306-12. Boccara D, Runz AD, Marco O, Chaouat M, Mimoun M. Primary Skin Umbilical Endometriosis: About One Case. J Clin Case Rep. 2016;6(3):742. Shafrir AL, Farland LV, Shah DK, Harris HR, Kvaskoff M, Zondervan K, et al. Risk for and consequences of endometriosis: a critical epidemiologic review. Best Pract Res Clin Obstet Gynaecol. 2018;51:1-15. Kydd AR, Patel D, Schwarz J, Joseph D, Mitchell G, Strasswimmer JM, et al. Umbilical endometriosis mistaken for a keloid in a premenopausal woman of Caribbean descent. JAAD Case Rep. 2016;2(3):219-21. Frischknecht F, Raio L, Fleischmann A, Dreher E, Luscher KP, Mueller MD. Umbilical endometriosis. Surg Endosc. 2004;18:347. Blanco RG, Parithivel VS, Shah AK, Gumbs MA, Schein M, Gerst PH. Abdominal wall endometriomas. Am J Surg. 2003;185(6):596-8. Genovese G, Passoni E, Veraldi S, Nazzaro G. Ultrasonographic findings in primary umbilical endometriosis. An Bras Dermatol. 2018;93(2):297-8. Hartigan C, Holloway B. MR imaging features of endometriosis at the umbilicus. Br J Radiol. 2005;78(932):755-7. 1Kuladeepa AV, Prashanth A, Lakshman IK. Villar’s nodule: a rare case report. J Clinic Diagnost Res. 2012;6(5):881-3. Arkoulis N, Chew B. An unusual case of asymptomatic spontaneous umbilical endometriosis treated with skin- sparing excision. J Surg Case Rep. 2015;3:1-3. Pramanik SR, Mondal S, Paul S, Joycerani D. Primary umbilical endometriosis: a rarity. J Hum Reprod Sci. 2014;7(4):269-71. Kydd AR, Patel D, Schwarz J, Joseph D, Mitchell G, Strasswimmer JM, et al. Umbilical endometriosis mistaken for a keloid in a premenopausal woman of Caribbean descent. JAAD Case Rep. 2016;2(3):219-21.

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