{"paper_id":"623c9160-cc5f-44e8-91be-691475c5dd08","body_text":"Abstract\nThe purpose of this pictorial essay is to highlight atypical and unusual presentations of endometriosis that can be missed or misinterpreted in the emergency setting. Although endometriosis is a chronic disease, it can present acutely with symptoms and imaging mimicking more common acute gynecologic, gastrointestinal, or urinary conditions as well as neoplasms. Furthermore, patients may present emergently prior to an established diagnosis of endometriosis. Here, we present a range of cases including endometrioma rupture and infection, urinary tract involvement and obstruction, bowel obstruction, appendicitis, gastrointestinal infiltration, abdominal masses, and thoracic involvement. Pelvic ultrasound and MRI are the most valuable imaging modalities in the assessment of endometriosis. 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Sheth: Lecturer for Philips Health.\nAdditional information\nPublisher's note\nSpringer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.\nRights and permissions\nSpringer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.\nAbout this article\nCite this article\nBrookmeyer, C., Fishman, E.K. & Sheth, S. Emergent and unusual presentations of endometriosis: pearls and pitfalls. Emerg Radiol 30, 377–385 (2023). https://doi.org/10.1007/s10140-023-02128-7\nReceived:\nAccepted:\nPublished:\nVersion of record:\nIssue date:\nDOI: https://doi.org/10.1007/s10140-023-02128-7","source_license":"CC0","license_restricted":false}