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Ampullary tumors: radiologic-pathologic correlation

J L Buck1, A M Elsayed

  • 1Department of Radiologic Pathology, Armed Forces Institute of Pathology, Alaska.

Radiographics : a Review Publication of the Radiological Society of North America, Inc
|January 1, 1993
PubMed
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Ampullary adenomas and adenocarcinomas are neoplasms of the ampulla of Vater. Diagnosis and staging, especially with endoscopic ultrasound, are crucial for treatment and prognosis, impacting survival rates.

Area of Science:

  • Gastroenterology
  • Oncology
  • Radiology

Background:

  • Ampullary adenoma and adenocarcinoma originate from the glandular epithelium of the ampulla of Vater.
  • Small tumors may present with normal endoscopic and radiographic findings.
  • Larger tumors can appear as prominent papilla or mural masses, with imaging showing ductal dilatation.

Purpose of the Study:

  • To review the diagnostic modalities and differential diagnosis of ampullary tumors.
  • To emphasize the importance of accurate diagnosis for surgical candidacy (Whipple operation).
  • To discuss the prognostic implications and survival rates associated with ampullary neoplasms.

Main Methods:

  • Review of imaging techniques including computed tomography (CT) and ultrasound (US).

Related Experiment Videos

  • Highlighting endoscopic ultrasound (EUS) as the optimal method for tumor staging.
  • Discussion of differential diagnoses including other periampullary tumors and duodenal masses.

    • Main Results:

    • CT and US can reveal ductal dilatation but may miss the tumor itself.
    • Endoscopic ultrasound is superior for accurate tumor staging.
    • Differential diagnosis must consider pancreatic carcinoma, cholangiocarcinoma, duodenal tumors, choledochocele, and carcinoid.

    Conclusions:

    • Accurate diagnosis of ampullary tumors is critical for patient management and surgical planning.
    • Survival rates vary, with 5-year survival reported between 28%-70%.
    • Prognosis is significantly better for patients with early-stage disease.