Year 2025 / Volume 117 / Number 4
Digestive Diseases Image
Spectral computed tomography as a method for identifying radiolucent gallstones

215-216

DOI: 10.17235/reed.2023.9760/2023

Juan Antonio Morbelli, María Ángeles Luceño Ros, María Covadonga Álvarez Fernández, Uxía Sobrino Castro,

Abstract
We present the case of an 82-year-old woman with history of right colon adenocarcinoma in whom a routine control scan is performed using a dual-layer detector spectral CT scanner. Conventional CT scan images show a dilated cystic bile duct with no apparent cause of obstruction, finding also no lithiasis inside the gallbladder. Non-calcified gallstones are composed mainly of cholesterol and can have the same radiographic density as bile, making them hard or impossible to spot on conventional CT.
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References
1. Demirler Simsir B, Danse E, Coche E. Benefit of dual-layer spectral CT in emergency imaging of different organ systems. Clinical Radiology 2020;75(12):886–902.
2. Danse E, Jamali S, Hubert C. Spectral CT Detection of Entrapped Gallstone Based on Z-effective Map. Journal of the Belgian Society of Radiology 2018;102(1):53.
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Morbelli J, Luceño Ros M, Álvarez Fernández M, Sobrino Castro U. Spectral computed tomography as a method for identifying radiolucent gallstones. 9760/2023


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Publication history

Received: 31/05/2023

Accepted: 05/06/2023

Online First: 22/06/2023

Published: 03/04/2025

Article Online First time: 22 days

Article editing time: 673 days


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