Colonic Endometriosis

Catherine L. Forse, James S. Wu
In: Cleveland Clinic Colorectal Case Studies · 2025 · pp. 677–681 · doi:10.1007/978-3-031-39880-3_121 · W4409918497
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This case study describes colonic endometriosis, a condition where endometrial tissue grows in the colon, potentially mimicking adenocarcinoma and requiring histological differentiation.

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This chapter discusses colonic endometriosis in the setting of endometrial tissue located outside the uterus, describing a case in which tissue attached to the cecum and grew through its wall, causing large intestinal bleeding and surgical resection. It focuses on the diagnostic problem that endometriosis can be mistaken for colonic adenocarcinoma and reviews histologic features that help distinguish endometriosis from adenocarcinoma. A key limitation is that the text is a case/case-study style chapter with an emphasis on descriptive histologic differentiation rather than providing broader comparative population data. This paper is centrally about endometriosis — it specifically addresses colonic (cecal) endometriosis and how to differentiate it histologically from adenocarcinoma.

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Abstract

Endometriosis is a condition that occurs when endometrial tissue resides outside the uterus. In this case, endometrial tissue attached to and then grew through the wall of the cecum leading to large intestinal bleeding and surgical resection. One of the issues with endometriosis is that it can be mistaken for colonic adenocarcinoma. The histologic features of endometriosis that distinguish it from adenocarcinoma are discussed. Access this chapter Tax calculation will be finalised at checkout Purchases are for personal use only Similar content being viewed by others

References

“Endometriosis.” Merriam-Webster.com; Dictionary, Merriam Webster, https://www.merriam-webster/com/dictionary/endometriosis. Accessed 2 Sep 2022. Arakawa T, Fukuda S, Hirata T, Neriishi K, Wang Y, Takeuchi A, et al. PAX8: A highly sensitive marker for the glands in extragenital endometriosis. Reprod Sci. 2019:193371911982809. https://doi.org/10.1177/1933719119828095. Rekhtman N, Bishop J. Chapter 1. Immunostains: Introduction. In: Quick Reference Handbook for Surgical Pathologists. Berlin: Springer; 2011. pp. 1–21. Kaimaktchiev V, Terracciano L, Tornillo L, Spichtin H, Stoios D, Bundi M, et al. The homeobox intestinal differentiation factor CDX2 is selectively expressed in gastrointestinal adenocarcinomas. Mod Pathol. 2004;17:1392–9. Abrão MS, Petraglia F, Falcone T, Keckstein J, Osuga Y, Chapron C. Deep endometriosis infiltrating the rectosigmoid: critical factors to consider before management. Hum Reprod Update. 2015;21:329–39. Author information Authors and Affiliations Editor information Editors and Affiliations Rights and permissions Copyright information © 2025 The Author(s), under exclusive license to Springer Nature Switzerland AG About this chapter Cite this chapter Forse, C.L., Wu, J.S. (2025). Colonic Endometriosis. In: Wu, J.S., Inkster, M.D. (eds) Cleveland Clinic Colorectal Case Studies. Springer, Cham. https://doi.org/10.1007/978-3-031-39880-3_121 Download citation DOI: https://doi.org/10.1007/978-3-031-39880-3_121 Published: Publisher Name: Springer, Cham Print ISBN: 978-3-031-39879-7 Online ISBN: 978-3-031-39880-3 eBook Packages: MedicineMedicine (R0)

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endometriosis

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