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Related Experiment Videos

CT evaluation following Whipple procedure: potential pitfalls in interpretation.

D A Bluemke1, E K Fishman, J Kuhlman

  • 1Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins Medical Institutions, Baltimore, MD.

Journal of Computer Assisted Tomography
|September 1, 1992
PubMed
Summary

Post-Whipple procedure CT scans can show findings mimicking pancreatic cancer recurrence, such as gastric antrum thickening and unopacified bowel loops. Awareness of these common findings is crucial for accurate interpretation and avoiding misdiagnosis.

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Area of Science:

  • Radiology
  • Oncology
  • Gastroenterology

Background:

  • The Whipple procedure is a complex surgery for pancreatic cancer.
  • Adjuvant therapy (chemotherapy and radiation) is common after the Whipple procedure.
  • Interpreting post-treatment imaging requires understanding expected changes.

Purpose of the Study:

  • To describe the spectrum of CT findings after Whipple procedure with adjuvant therapy.
  • To identify potential interpretation errors in CT scans of these patients.
  • To differentiate treatment effects from recurrent pancreatic cancer.

Main Methods:

  • Retrospective review of 41 CT examinations.
  • Analysis of 14 patients who underwent Whipple procedure for pancreatic cancer.
  • Correlation of CT findings with clinical and pathological data.

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Main Results:

  • Gastric antrum and proximal duodenum wall thickening (5-10 mm) was observed in 9/14 patients, mimicking recurrence.
  • Unopacified anastomotic bowel loops in the porta hepatis (56%) mimicked recurrence or adenopathy.
  • Liver metastases (5/14) and pancreatic bed recurrence (4/14) were identified.
  • Pneumobilia was a frequent normal finding (33/41 examinations).

Conclusions:

  • CT findings like gastric wall thickening and unopacified bowel loops can mimic recurrent pancreatic cancer after Whipple procedure and adjuvant therapy.
  • Radiologists must be aware of these post-treatment changes to avoid misinterpreting them as disease recurrence.
  • Distinguishing treatment-related changes from actual tumor recurrence is critical for patient management.