Involvement of pancreatic and bile ducts in autoimmune pancreatitis

doi:10.3748/wjg.v12.i4.612

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Jan 28, 2006 (publication date) through May 4, 2024

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World Journal of Gastroenterology

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1007-9327

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

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World J Gastroenterol. Jan 28, 2006; 12(4): 612-614
Published online Jan 28, 2006. doi: 10.3748/wjg.v12.i4.612

Involvement of pancreatic and bile ducts in autoimmune pancreatitis

Terumi Kamisawa, Yuyang Tu, Naoto Egawa, Hitoshi Nakajima, Kouji Tsuruta, Atsutake Okamoto

Terumi Kamisawa, Yuyang Tu, Naoto Egawa, Hitoshi Nakajima, Department of Internal Medicine, Tokyo Metropolitan Komagome Hospital, 3-18-22 Honkomagome, Bunkyo-ku, Tokyo 113-8677, Japan

Kouji Tsuruta, Atsutake Okamoto, Department of Surgery, Tokyo Metropolitan Komagome Hospital, 3-18-22 Honkomagome, Bunkyo-ku, Tokyo 113-8677, Japan

Supported by Health and Labor Sciences Research Grants, Research on Specific Diseases (Intractable Diseases of the Pancreas)

Correspondence to: Dr. Terumi Kamisawa, Department of Internal Medicine, Tokyo Metropolitan Komagome Hospital, 3-18-22 Honkomagome, Bunkyo-ku, Tokyo 113-8677, Japan. kamisawa@cick.jp

Telephone: +81-3-3823-2101 Fax: +81-3-3824-1552

Received: July 11, 2005
Revised: July 28, 2005
Accepted: July 28, 2005
Published online: January 28, 2006

Abstract

AIM: To examine the involvement of the pancreatic and bile ducts in patients with autoimmune pancreatitis.

METHODS: Clinical and cholangiopancreatographic findings of 28 patients with autoimmune pancreatitis were evaluated. For the purposes of this study, the pancreatic duct system was divided into three portions: the ventral pancreatic duct; the head portion of the dorsal pancreatic duct; and the body and tail of the dorsal pancreatic duct.

RESULTS: Both the ventral and dorsal pancreatic ducts were involved in 24 patients, while in 4 patients only the dorsal pancreatic duct was involved. Marked stricture of the bile duct was detected in 20 patients and their initial symptom was obstructive jaundice. Six patients showed moderate stenosis to 30%-40% of the normal diameter, and the other two patients showed no stenosis of the bile duct. Although marked stricture of the bile duct was detected in 83% (20/24) of patients who showed narrowing of both the ventral and dorsal pancreatic ducts, it was not observed in the 4 patients who showed involvement of the dorsal pancreatic duct alone (P = 0.0034).

CONCLUSION: Both the ventral and dorsal pancreatic and bile ducts are involved in patients with autoimmune pancreatitis.

Keywords: Autoimmune pancreatitis, Dorsal pancreatic duct, Ventral pancreatic duct