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Ultrasound evaluation of portal venous gas and its mimics

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Abstract

Portal venous gas on abdominal ultrasound classically represents an indirect indicator of bowel ischemia, a critical condition which poses a high patient mortality and therefore warrants emergent corrective action. While the classic appearance of portal venous gas on ultrasound is well-described in the literature, the characteristic descriptors are nonspecific and may actually represent other less emergent mimics. Therefore, while radiologists should remain vigilant for the detection of findings corresponding to portal venous gas, they should also be aware of similar-appearing entities in order to provide the most accurate diagnosis. This pictorial essay will open with imaging examples of true portal venous gas attributable to bowel ischemia and describe the classic features which should alert radiologists to this specific diagnosis. Subsequently, this pictorial essay will provide imaging examples of other various other clinical entities which on ultrasound may share similar imaging characteristics. An important objective of this pictorial essay is to highlight distinguishing imaging features along with specific clinical circumstances for each pathological entity which can direct radiologists into identifying the correct diagnosis.

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Authors and Affiliations

  1. Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT, USA

    Ryan Bitar, Manroop Kaur & Margarita V. Revzin

  2. Department of Cardiovascular Medicine, Yale School of Medicine, New Haven, CT, USA

    Ian Crandall & Robert McNamara

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  1. Ryan Bitar
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  2. Manroop Kaur
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  3. Ian Crandall
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  4. Robert McNamara
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  5. Margarita V. Revzin
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Correspondence to Margarita V. Revzin.

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Bitar, R., Kaur, M., Crandall, I. et al. Ultrasound evaluation of portal venous gas and its mimics. Abdom Radiol (2024). https://doi.org/10.1007/s00261-024-04328-2

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  • DOI: https://doi.org/10.1007/s00261-024-04328-2

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