Abstract
We present a case of pancreatic carcinoma with strongly suspected coexisting autoimmune pancreatitis (AIP). The patient presented with a chief complaint of icterus and weight loss, and was referred to our institution after a pancreatic lesion was found. Blood test showed elevation of serum bilirubin, hepato-biliary enzyme, glucose and tumor markers, and also high levels of serum IgG4 (344 mg/dl, normal 4.8–105 mg/dl) and anti-DNA antibody (14 IU/ml, normal <6.0 IU/ml). Ultrasonography demonstrated an enlarged pancreas with smooth borders and low internal echo density. Enhanced computed tomography (CT) showed a sausage-shaped pancreas without definitive metastasis to the surrounding lymph nodes and liver. Imaging of the pancreatic duct, including endoscopic retrograde pancreatography (ERP) and magnetic resonance cholangiopancreatography (MRCP), showed stenosis of the main pancreatic duct at the pancreatic head as well as a long segment of narrowing at the body and no dilatation at the tail. Tissues from these stenotic sites and open biopsy from pancreatic body showed infiltrating adenocarcinoma and dense fibrosis. To date, only a small number of reports have described pancreatic carcinoma accompanied with AIP. It is important to confirm diagnosis with histology in cases of suspicious autoimmune pancreatitis, even when the clinical images are compatible with AIP.
Similar content being viewed by others
References
Okazaki K, Uchida K, Fukui T. Recent advances in autoimmune pancreatitis: concept, diagnosis, and pathogenesis. J Gastroenterol. 2008;43(6):409–18.
Kamisawa T, Egawa N, Nakajima H, Tsuruta K, Okamoto A, Kamata N. Clinical difficulties in the differentiation of autoimmune pancreatitis and pancreatic carcinoma. Am J Gastroenterol. 2003;98(12):2694–9.
Nakazawa T, Ohara H, Sano H, Ando T, Imai H, Takada H, et al. Difficulty in diagnosing autoimmune pancreatitis by imaging findings. Gastrointest Endosc. 2007;65(1):99–108.
Matsubayashi H, Furukawa H, Uesaka K, Sasaki K, Ono H, Hruban RH. Autoimmune pancreatitis accompanied with cholecystistis, periaortitis and pseudotumors of the liver. Case Rep Gastroenterol. 2008;1(2):155–61.
Kajiwara M, Gotohda N, Konishi M, Nakagohri T, Takahashi S, Kojima M, et al. Incidence of the focal type of autoimmune pancreatitis in chronic pancreatitis suspected to be pancreatic carcinoma: experience of a single tertiary cancer center. Scand J Gastroenterol. 2008;43(1):110–6.
Kamisawa T, Tu Y, Egawa N, Tsuruta K, Okamoto A, Kodama M, et al. Can MRCP replace ERCP for the diagnosis of autoimmune pancreatitis? Abdom Imaging 2008 (in press).
Kamisawa T, Chen PY, Tu Y, Nakajima H, Egawa N, Tsuruta K, et al. Pancreatic cancer with a high serum IgG4 concentration. World J Gastroenterol. 2006;12(38):6225–8.
Ohtsubo K, Watanabe H, Okada G, Tsuchiyama T, Mouri H, Yamaguchi Y, et al. A case of pancreatic cancer with formation of a mass mimicking alcoholic or autoimmune pancreatitis in a young man. Possibility of diagnosis by hypermethylation of pure pancreatic juice. JOP. 2008;9(1):37–45.
Fukui T, Mitsuyama T, Takaoka M, Uchida K, Matsushita M, Okazaki K. Pancreatic cancer associated with autoimmune pancreatitis in remission. Intern Med. 2008;47(3):151–5.
Inoue H, Miyatani H, Sawada Y, Yoshida Y. A case of pancreas cancer with autoimmune pancreatitis. Pancreas. 2006;33(2):208–9.
Witkiewicz AK, Kennedy EP, Kennyon L, Yeo CJ, Hruban RH. Synchronous autoimmune pancreatitis and infiltrating pancreatic ductal adenocarcinoma: case report and review of the literature. Hum Pathol. 2008;39(10):1548–51.
Ozaki Y, Oguchi K, Hamano H, Arakura N, Muraki T, Kiyosawa K, et al. Differentiation of autoimmune pancreatitis from suspected pancreatic cancer by fluorine-18 fluorodeoxyglucose positron emission tomography. J Gastroenterol. 2008;43(2):144–51.
Infante JR, Matsubayashi H, Sato N, Tonascia J, Klein AP, Riall TA, et al. Peritumoral fibroblast SPARC expression and patient outcome with resectable pancreatic adenocarcinoma. J Clin Oncol. 2007;25(3):319–25.
Adsay NV, Basturk O, Thirabanjasak D. Diagnostic features and differential diagnosis of autoimmune pancreatitis. Semin Diagn Pathol. 2005;22(4):309–17.
Hamano H, Kawa S, Horiuchi A, Unno H, Furuya N, Akamatsu T, et al. High serum IgG4 concentrations in patients with sclerosing pancreatitis. N Engl J Med. 2001;344(10):732–8.
Raina A, Krasinskas AM, Greer JB, Lamb J, Fink E, Moser AJ, et al. Serum immunoglobulin G fraction 4 levels in pancreatic cancer: elevations not associated with autoimmune pancreatitis. Arch Pathol Lab Med. 2008;132(1):48–53.
Ghazale A, Chari ST, Smyrk TC, Levy MJ, Topazian MD, Takahashi N, et al. Value of serum IgG4 in the diagnosis of autoimmune pancreatitis and in distinguishing it from pancreatic cancer. Am J Gastroenterol. 2007;102(8):1646–53.
Takahashi K, Yamao K, Okubo K, Sawaki A, Mizuno N, Ashida R, et al. Differential diagnosis of pancreatic cancer and focal pancreatitis by using EUS-guided FNA. Gastrointest Endosc. 2005;61(1):76–9.
Wakatsuki T, Irisawa A, Bhutani MS, Hikichi T, Shibukawa G, Takagi T, et al. Comparative study of diagnostic value of cytologic sampling by endoscopic ultrasonography-guided fine-needle aspiration and that by endoscopic retrograde pancreatography for the management of pancreatic mass without biliary stricture. J Gastroenterol Hepatol. 2005;20(11):1707–11.
Uchida N, Kamada H, Tsutsui K, Ono M, Aritomo Y, Masaki T, et al. Utility of pancreatic duct brushing for diagnosis of pancreatic carcinoma. J Gastroenterol. 2007;42(8):657–62.
Levy MJ. Endoscopic ultrasound-guided trucut biopsy of the pancreas: prospects and problems. Pancreatology. 2007;7(2–3):163–6.
Acknowledgments
The authors thank Dr. Ralph H. Hruban of Johns Hopkins Medical Institutions in the USA for his assistance with reviewing the English of the manuscript and providing beneficial comments.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Matsubayashi, H., Matsunaga, K., Uesaka, K. et al. A case of pancreatic carcinoma with suspected autoimmune pancreatitis. Clin J Gastroenterol 2, 59–63 (2009). https://doi.org/10.1007/s12328-008-0045-9
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12328-008-0045-9