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Ectopic lesions in the abdomen and pelvis: a multimodality pictorial review

Abdominal Radiology volume 47, pages 2254–2276 (2022)Cite this article

Abstract

Various ectopic lesions occur in the abdomen and pelvis and affect multiple organs including liver, gallbladder, pancreas, spleen, and organs of the genitourinary system. Ectopic organs may be present outside their normal positions, or ectopic tissues may develop while the original organ exists in its normal position. Both benign and malignant lesions can occur in ectopic organs and tissues. Owing to their unusual location, they can often be misdiagnosed as other lesions or even malignant lesions, such as metastasis or seeding. This multimodality pictorial review provides various cases of ectopic lesions in the abdomen and pelvis, which will help narrow the differential diagnosis and guide clinical decision-making.

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Authors and Affiliations

  1. Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine, 148 Gurodong-ro, Guro-gu, Seoul, 08380, Korea

    Jeong Woo Kim, Kyeong Ah Kim, Bit Na Park, Mi Jin Song, Yang Shin Park, Jongmee Lee, Jae Woong Choi & Chang Hee Lee

  2. Department of Radiology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea

    Ki Choon Sim

  3. Department of Radiology, Chungbuk National University Hospital, Chungbuk National University College of Medicine, Cheongju, Korea

    Jisun Lee

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  1. Jeong Woo Kim
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Contributions

KAK contributed to the study conception and design. Material preparation and image collection were performed by KAK, JWK, KCS, and JL. The first draft of the manuscript was written by JWK and KAK and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Kyeong Ah Kim.

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Kim, J.W., Kim, K.A., Sim, K.C. et al. Ectopic lesions in the abdomen and pelvis: a multimodality pictorial review. Abdom Radiol 47, 2254–2276 (2022). https://doi.org/10.1007/s00261-022-03520-6

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  • DOI: https://doi.org/10.1007/s00261-022-03520-6

Keywords

  • Ectopic lesion
  • Abdomen
  • Radiology
  • CT
  • MRI
  • US