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Related Concept Videos

Imaging Studies I: Kidney, Ureter, and Bladder Studies01:28

Imaging Studies I: Kidney, Ureter, and Bladder Studies

Kidney, Ureter, and Bladder (KUB) StudiesKidney, Ureter, and Bladder (KUB) studies are standard diagnostic imaging procedures used to assess the anatomy of the urinary system. They are commonly utilized for patients experiencing abdominal pain or urinary symptoms. By using a simple X-ray of the abdomen, KUB studies can reveal structural and pathological abnormalities within the kidneys, ureters, and bladder. These studies are particularly valuable in diagnosing kidney stones, urinary...
Imaging Studies IV: Magnetic Resonance Imaging01:27

Imaging Studies IV: Magnetic Resonance Imaging

Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...
Imaging Studies V: Intravenous Urography and Retrograde Pyelography01:22

Imaging Studies V: Intravenous Urography and Retrograde Pyelography

IntroductionIntravenous Urography (IVU) and Retrograde Pyelography (RP) are important diagnostic imaging techniques used to evaluate the urinary system. These methods help identify structural abnormalities, obstructions, and functional issues in the kidneys, ureters, and bladder. Both procedures use iodine-based contrast media to enhance the visibility of urinary tract structures on X-ray images, though they differ in their methods and indications.1. Intravenous Urography (IVU)Intravenous...
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...

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Related Experiment Video

Updated: May 10, 2026

Intraoperative Strategy under Complex Vascular Adhesion for Laparoscopic Radical Resection of Bismuth-Corlette Type IIIb Perihilar Cholangiocarcinoma
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Intraoperative Strategy under Complex Vascular Adhesion for Laparoscopic Radical Resection of Bismuth-Corlette Type IIIb Perihilar Cholangiocarcinoma

Published on: February 13, 2026

Imaging bile duct tumors: staging.

Juan-Ramón Ayuso1, Mario Pagés, Anna Darnell

  • 1Radiology Department, Centre de Diagnòstic per la Imatge Clínic (CDIC), Hospital Clínic, C/Villarroel 170, 08036, Barcelona, Spain, jrayuso@clinic.ub.es.

Abdominal Imaging
|June 25, 2013
PubMed
Summary
This summary is machine-generated.

Cholangiocarcinoma (CC) staging systems aid surgical planning and prognosis. Advanced imaging like CT and MRI are crucial for diagnosing CC and determining if surgical resection is feasible.

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Last Updated: May 10, 2026

Intraoperative Strategy under Complex Vascular Adhesion for Laparoscopic Radical Resection of Bismuth-Corlette Type IIIb Perihilar Cholangiocarcinoma
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Intraoperative Strategy under Complex Vascular Adhesion for Laparoscopic Radical Resection of Bismuth-Corlette Type IIIb Perihilar Cholangiocarcinoma

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Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction
07:44

Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction

Published on: March 25, 2022

Area of Science:

  • Gastroenterology and Hepatology
  • Oncology
  • Radiology

Background:

  • Cholangiocarcinoma (CC) is the most common biliary system neoplasm.
  • CC classification includes intrahepatic, perihilar, and extrahepatic distal types, each with distinct behaviors.
  • Accurate patient stratification is vital for effective CC management and prognosis.

Purpose of the Study:

  • To review current staging systems for cholangiocarcinoma.
  • To discuss radiologic characteristics for diagnosing CC.
  • To outline criteria for assessing tumor resectability.

Main Methods:

  • Review of existing cholangiocarcinoma staging systems.
  • Analysis of imaging features from multidetector computed tomography (MDCT) and magnetic resonance imaging (MRI).
  • Discussion of diagnostic and resectability criteria for biliary tract malignancies.

Main Results:

  • Staging systems are precise for surgical planning and prognosis but less so for therapeutic algorithms.
  • MDCT and MRI are essential for diagnosis and assessing tumor extension.
  • Imaging provides high negative predictive value for identifying non-resectable cases.

Conclusions:

  • Effective cholangiocarcinoma management relies on anatomical classification and appropriate staging.
  • Radiologic assessment is critical for accurate diagnosis and determining surgical resectability.
  • Imaging plays a key role in identifying patients unsuitable for surgery, optimizing treatment pathways.