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Chronic Pancreatitis I: Introduction01:24

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The pancreas, an elongated and flat gland situated behind the stomach, serves a vital function in digesting food and managing blood sugar levels.
Pancreatitis is the inflammation of the pancreas, which occurs when the immune system becomes active and causes swelling, pain, and disruptions in organ function. Pancreatitis can manifest as either an acute or chronic condition.
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Acute pancreatitis presents a complex medical emergency characterized by rapid onset inflammation of the pancreas, demanding timely diagnosis and management to prevent complications. The condition primarily manifests through severe upper abdominal pain that often radiates to the back. This pain intensifies following the consumption of fatty foods. Accompanying symptoms such as nausea, vomiting, abdominal distention, fever, dyspnea, cyanosis, and jaundice can vary in intensity but significantly...
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Pancreatitis is inflammation of the pancreas, an organ located behind the stomach. It can be either acute or chronic.
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Gastritis is marked by disruption of the mucosal barrier that usually protects the stomach tissue from digestive juices and manifests in acute and chronic forms.
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Autoimmune pancreatitis: Imaging features.

Yi Dong1, Mirko D'Onofrio2, Michael Hocke3

  • 1Department of Ultrasound, Zhongshan Hospital, Fudan University, 200032 Shanghai, China.

Endoscopic Ultrasound
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Summary
This summary is machine-generated.

Contrast-enhanced ultrasound (CEUS) and endoscopic ultrasound (CE-EUS) help differentiate autoimmune pancreatitis (AIP) from pancreatic cancer. These advanced imaging techniques reveal vascularized AIP lesions, aiding in accurate diagnosis before treatment.

Keywords:
Autoimmune pancreatitiscontrast-enhanced endoscopic ultrasoundcontrast-enhanced ultrasoundguideline

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Area of Science:

  • Medical Imaging
  • Gastroenterology
  • Oncology

Background:

  • Autoimmune pancreatitis (AIP) diagnosis is challenging, especially with focal mass lesions.
  • Distinguishing AIP from pancreatic adenocarcinoma (PDAC) pre-treatment is critical.

Purpose of the Study:

  • To evaluate the diagnostic value of contrast-enhanced ultrasound (CEUS), contrast-enhanced endoscopic ultrasound (CE-EUS), and elastography in AIP.
  • To analyze imaging features of histologically confirmed AIP compared to PDAC.

Main Methods:

  • Retrospective analysis of 60 AIP and 16 PDAC cases.
  • Assessment of CEUS and CE-EUS by two independent readers.
  • Application of European Federation of Societies for Ultrasound in Medicine and Biology guidelines.

Main Results:

  • AIP lesions typically showed isoenhancement in the arterial phase (86.6%), while PDAC lesions were hypoenhancing (93.7%).
  • Late phase imaging revealed hyperenhancement in most AIP lesions (65%), contrasting with PDAC hypoenhancement (93.7%).
  • CE-EUS showed hyperenhancement in all AIP cases; focal AIP lesions were stiffer than surrounding parenchyma.

Conclusions:

  • CEUS and CE-EUS effectively identify vascularized features in both focal and diffuse AIP.
  • These contrast-enhanced ultrasound techniques enable differentiation of AIP from hypovascular PDAC.