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17 August 1999 | Volume 131 Issue 4 | Pages 247-255
Background: Pancreatic cancer, the fourth most common cause of cancer death in the United States, is hereditary in an estimated 10% of cases. Surveillance of patients with a familial predisposition for pancreatic cancer has not been systematically evaluated.
Objective: To develop a surveillance program that can identify and treat patients who have precancerous conditions of the pancreas and a family history of pancreatic cancer.
Design: Prospective cohort study.
Setting: University medical center.
Patients: 14 patients from three kindreds with a history of pancreatic cancer.
Interventions: Endoscopic ultrasonography, endoscopic retrograde cholangiopancreatography (ERCP), spiral computed tomography, and serum carcinoembryonic antigen and CA19-9 analysis were performed in all patients. Four affected patients were tested for the K- ras mutation.
Main Outcome Measurement: Pancreatic dysplasia was determined by histologic evaluation.
Results: Seven of the 14 patients were believed to have dysplasia on the basis of clinical history and abnormalities on endoscopic ultrasonography and ERCP and were referred for pancreatectomy. All 7 patients had histologic evidence of dysplasia in pancreatectomy specimens. Findings on endoscopic ultrasonography were subtle, nonspecific, and similar to those seen in patients with chronic pancreatitis. Findings on ERCP ranged from mild and focal side-branch duct irregularities and small sacculations to main-duct strictures and grapelike clusters of saccules. Some of these changes are typical of chronic pancreatitis, but others are more distinctive. Spiral computed tomography and serum tumor markers had low sensitivity in the detection of pancreatic dysplasia. Analysis for the K- ras mutation yielded positive results in 3 of 4 patients with dysplasia.
Conclusions: Thorough screening of patients with a family history of pancreatic cancer is feasible. Clinical data combined with imaging studies (endoscopic ultrasonography and ERCP) can be used to identify high-risk patients who have dysplasia. The role of molecular genetic testing is uncertain at this time.
Author and Article Information
From University of Washington, Seattle, Washington.
Requests for Reprints: Teresa A. Brentnall, MD, Division of Gastroenterology, Box 356424, University of Washington, Seattle, WA 98195; e-mail, teribr{at}u.washington.edu.
Current Author Addresses: Drs. Brentnall and Kimmey: Division of Gastroenterology, Box 356424, University of Washington, Seattle, WA 98195.
Drs. Bronner and Haggitt: Department of Pathology, Box 356100, University of Washington, Seattle, WA 98195.
Dr. Byrd: Department of Surgery, Box 356410, University of Washington, Seattle, WA 98195. ARTICLE
Early Diagnosis and Treatment of Pancreatic Dysplasia in Patients with a Family History of Pancreatic Cancer
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