The “Inside-outside” Sign

We describe a radiological sign, “inside-outside sign,” observed during the cannulation of an expandable contrast-filled tubular structure in the human body. In this optical illusion, a catheter or guidewire appears to be outside the lumen when it is inside the lumen in reality. Knowing this rare op...

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Detalles Bibliográficos
Autores principales: Haridass, Shoban, Keshava, Shyamkumar N.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Scientific Scholar 2021
Materias:
Short Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8571281/
https://www.ncbi.nlm.nih.gov/pubmed/34754597
http://dx.doi.org/10.25259/JCIS_192_2021
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author Haridass, Shoban
Keshava, Shyamkumar N.
author_facet Haridass, Shoban
Keshava, Shyamkumar N.
author_sort Haridass, Shoban
collection PubMed
description We describe a radiological sign, “inside-outside sign,” observed during the cannulation of an expandable contrast-filled tubular structure in the human body. In this optical illusion, a catheter or guidewire appears to be outside the lumen when it is inside the lumen in reality. Knowing this rare optical illusion is essential to avoid mistaking it for a catheter or guidewire outside the lumen.
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spelling pubmed-85712812021-11-08 The “Inside-outside” Sign Haridass, Shoban Keshava, Shyamkumar N. J Clin Imaging Sci Short Communication We describe a radiological sign, “inside-outside sign,” observed during the cannulation of an expandable contrast-filled tubular structure in the human body. In this optical illusion, a catheter or guidewire appears to be outside the lumen when it is inside the lumen in reality. Knowing this rare optical illusion is essential to avoid mistaking it for a catheter or guidewire outside the lumen. Scientific Scholar 2021-11-01 /pmc/articles/PMC8571281/ /pubmed/34754597 http://dx.doi.org/10.25259/JCIS_192_2021 Text en © 2021 Published by Scientific Scholar on behalf of Journal of Clinical Imaging Science https://creativecommons.org/licenses/by-nc-sa/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-Share Alike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.
spellingShingle Short Communication
Haridass, Shoban
Keshava, Shyamkumar N.
The “Inside-outside” Sign
title The “Inside-outside” Sign
title_full The “Inside-outside” Sign
title_fullStr The “Inside-outside” Sign
title_full_unstemmed The “Inside-outside” Sign
title_short The “Inside-outside” Sign
title_sort “inside-outside” sign
topic Short Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8571281/
https://www.ncbi.nlm.nih.gov/pubmed/34754597
http://dx.doi.org/10.25259/JCIS_192_2021
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