Abstract
Background
Fluorine-18 fluorodeoxyglucose positron emission tomography (FDG-PET) has been widely used for the diagnosis of pancreatic cancer. Because autoimmune pancreatitis is easily misdiagnosed as pancreatic cancer and can be tested for by FDG-PET analysis based on the presence of suspected pancreatic cancer, we attempted to clarify the differences in FDG-PET findings between the two conditions.
Methods
We compared FDG-PET findings between 15 patients with autoimmune pancreatitis and 26 patients with pancreatic cancer. The findings were evaluated visually or semiquantitatively using the maximum standardized uptake value and the accumulation pattern of FDG.
Results
FDG uptake was found in all 15 patients with autoimmune pancreatitis, whereas it was found in 19 of 26 patients (73.1%) with pancreatic cancer. An accumulation pattern characterized by nodular shapes was significantly more frequent in pancreatic cancer, whereas a longitudinal shape indicated autoimmune pancreatitis. Heterogeneous accumulation was found in almost all cases of autoimmune pancreatitis, whereas homogeneous accumulation was found in pancreatic cancer. Significantly more cases of pancreatic cancer showed solitary localization, whereas multiple localization in the pancreas favored the presence of autoimmune pancreatitis. FDG uptake by the hilar lymph node was significantly more frequent in autoimmune pancreatitis than in pancreatic cancer, and uptake by the lachrymal gland, salivary gland, biliary duct, retroperitoneal space, and prostate were seen only in autoimmune pancreatitis.
Conclusions
FDG-PET is a useful tool for differentiating autoimmune pancreatitis from suspected pancreatic cancer, if the accumulation pattern and extrapancreatic involvement are considered. IgG4 measurement and other current image tests can further confirm the diagnosis.
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References
Delbeke D, Rose DM, Chapman WC, Pinson CW, Wright JK, Beauchamp RD, et al. Optimal interpretation of FDG PET in the diagnosis, staging and management of pancreatic carcinoma. J Nucl Med 1999;40:1784–1791.
Imdahl A, Nitzsche E, Krautmann F, Hogerle S, Boos S, Einert A, et al. Evaluation of positron emission tomography with 2-[18F]fluoro-2-deoxy-D-glucose for the differentiation of chronic pancreatitis and pancreatic cancer. Br J Surg 1999;86:194–199.
Inokuma T, Tamaki N, Torizuka T, Magata Y, Fujii M, Yonekura Y, et al. Evaluation of pancreatic tumors with positron emission tomography and F-18 fluorodeoxyglucose: comparison with CT and US. Radiology 1995;195:345–352.
Zimny M, Bares R, Fass J, Adam G, Cremerius U, Dohmen B, et al. Fluorine-18 fluorodeoxyglucose positron emission tomography in the differential diagnosis of pancreatic carcinoma: a report of 106 cases. Eur J Nucl Med 1997;24:678–682.
Nakamoto Y, Higashi T, Sakahara H, Tamaki N, Kogire M, Doi R, et al. Delayed (18)F-fluoro-2-deoxy-d-glucose positron emission tomography scan for differentiation between malignant and benign lesions in the pancreas. Cancer 2000;89:2547–2554.
van Kouwen MC, Jansen JB, van Goor H, de Castro S, Oyen WJ, Drenth JP. FDG-PET is able to detect pancreatic carcinoma in chronic pancreatitis. Eur J Nucl Med Mol Imaging 2005;32:399–404.
Heinrich S, Goerres GW, Schafer M, Sagmeister M, Bauerfeind P, Pestalozzi BC, et al. Positron emission tomography/computed tomography influences on the management of resectable pancreatic cancer and its cost-effectiveness. Ann Surg 2005;242:235–243.
Toki F, Kozu T, Oi I, Nakasato T, Suzuki M, Hanyu F. An unusual type of chronic pancreatitis showing diffuse irregular narrowing of the entire main pancreatic duct on ERCP-a report of four cases. Endoscopy 1992;24:640.
Yoshida K, Toki F, Takeuchi T, Watanabe S, Shiratori K, Hayashi N. Chronic pancreatitis caused by an autoimmune abnormality. Proposal of the concept of autoimmune pancreatitis. Dig Dis Sci 1995;40:1561–1568.
Ito T, Nakano I, Koyanagi S, Miyahara T, Migita Y, Ogoshi K, et al. Autoimmune pancreatitis as a new clinical entity. Three cases of autoimmune pancreatitis with effective steroid therapy. Dig Dis Sci 1997;42:1458–1468.
Horiuchi A, Kawa S, Akamatsu T, Aoki Y, Mukawa K, Furuya N, et al. Characteristic pancreatic duct appearance in autoimmune chronic pancreatitis: a case report and review of the Japanese literature. Am J Gastroenterol 1998;93:260–263.
Horiuchi A, Kawa S, Hamano H, Hayama M, Ota H, Kiyosawa K. ERCP features in 27 patients with autoimmune pancreatitis. Gastrointest Endosc 2002;55:494–499.
Abraham SC, Wilentz RE, Yeo CJ, Yeo CJ, Sohn TA, Cameron JL, Boitnott, et al. Pancreaticoduodenectomy (Whipple resection) in patients without malignancy. Am J Surg Pathol 2003;27:110–120.
Kawa S, Hamano H, Kiyosawa K. Pancreatitis. In: Rose NR, MacKay IR, editors. The autoimmune diseases. 4th ed. St Louis: Academic; 2006. p. 779–786.
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;344:732–738.
Hamano H, Kawa S, Ochi Y, Unno H, Shiba N, Wajiki M, et al. Hydronephrosis associated with retroperitoneal fibrosis and sclerosing pancreatitis. Lancet 2002;359:1403–1404.
Strauss LG. Fluorine-18 deoxyglucose and false-positive results: a major problem in the diagnostics of oncological patients. Eur J Nucl Med 1996;23:1409–1415.
Shreve PD. Focal fluorine-18 fluorodeoxyglucose accumulation in inflammatory pancreatic disease. Eur J Nucl Med 1998;25:259–264.
Higashi T, Saga T, Nakamoto Y, Ishimori T, Fujimoto K, Doi R, et al. Diagnosis of pancreatic cancer using fluorine-18 fluorodeoxyglucose positron emission tomography (FDG PET)-usefulness and limitations in “clinical reality”. Ann Nucl Med 2003;17:261–279.
Yokoyama Y, Nagino M, Hiromatsu T, Yuasa N, Oda K, Arai T, et al. Intense PET signal in the degenerative necrosis superimposed on chronic pancreatitis. Pancreas 2005;31:192–194.
Huang B, Puri S. Pancreatic pseudocyst observed on F-18 FDG PET imaging. Clin Nucl Med 2005;30:259–261.
Sperti C, Pasquali C, Decet G, Chierichetti F, Liessi G, Pedrazzoli S. F-18-fluorodeoxyglucose positron emission tomography in differentiating malignant from benign pancreatic cysts: a prospective study. J Gastrointest Surg 2005;9:22–28; discussion 28–9.
Nakamoto Y, Sakahara H, Higashi T, Saga T, Sato N, Okazaki K, et al. Autoimmune pancreatitis with F-18 fluoro-2-deoxy-d-glucose PET findings Clin Nucl Med. 1999;24:778–780.
Nakamoto Y, Saga T, Ishimori T, Higashi T, Mamede M, Okazaki K, et al. FDG-PET of autoimmune-related pancreatitis: preliminary results. Eur J Nucl Med 2000;27:1835–1838.
Members of the Criteria Committee for Autoimmune Pancreatitis of the Japan Pancreas Society. Diagnostic criteria for autoimmune pancreatitis by the Japan Pancreas Society. J Jpn Pancreas (Suizou) 2002;17:587.
Okazaki K, Kawa S, Kamisawa T, Naruse S, Tanaka S, Nishimori I, et al. Clinical diagnostic criteria of autoimmune pancreatitis: revised proposal. J Gastroenterol 2006;41:626–631.
Bares R, Klever P, Hauptmann S, Hellwig D, Fass J, Cremerius U, et al. F-18 fluorodeoxyglucose PET in vivo evaluation of pancreatic glucose metabolism for detection of pancreatic cancer. Radiology 1994;192:79–86.
Diederichs CG, Staib L, Glasbrenner B, Guhlmann A, Glatting G, Pauls S, et al. F-18 fluorodeoxyglucose (FDG) and C-reactive protein (CRP). Clin Positron Imaging 1999;2:131–136.
Kubota R, Yamada S, Kubota K, Ishiwata K, Tamahashi N, Ido T. Intratumoral distribution of fluorine-18-fluorodeoxyglucose in vivo: high accumulation in macrophages and granulation tissues studied by microautoradiography. J Nucl Med 1992;33:1972–1980.
Sperti C, Pasquali C, Decet G, Chierichetti F, Liessi G, Pedrazzoli S. F-18-fluorodeoxyglucose positron emission tomography in differentiating malignant from benign pancreatic cysts: a prospective study. J Gastrointest Surg 2005;9:22–28.
Heinrich S, Goerres GW, Schafer M, Sagmeister M, Bauerfeind P, Pestalozzi BC, et al. Positron emission tomography/computed tomography influences on the management of resectable pancreatic cancer and its cost-effectiveness. Ann Surg 2005;242:235–243.
Hamano H, Arakura N, Muraki T, Ozaki Y, Kiyosawa K, Kawa S. Prevalence and distribution of extra-pancreatic lesions complicated with autoimmune pancreatitis. J Gastroenterol 2006;41:1197–1205.
Saegusa H, Momose M, Kawa S, Hamano H, Ochi Y, Takayama M, et al. Hilar and pancreatic gallium-67 accumulation is characteristic feature of autoimmune pancreatitis. Pancreas 2003;27:20–25.
Hustinx R, Lemaire C, Jerusalem G, Moreau P, Cataldo D, Duysinx B, et al. Whole-body tumor imaging using PET and 2–18F-fluoro-l-tyrosine: preliminary evaluation and comparison with 18F-FDG. J Nucl Med 2003;44:533–539.
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Ozaki, Y., Oguchi, K., Hamano, H. et al. Differentiation of autoimmune pancreatitis from suspected pancreatic cancer by fluorine-18 fluorodeoxyglucose positron emission tomography. J Gastroenterol 43, 144–151 (2008). https://doi.org/10.1007/s00535-007-2132-y
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DOI: https://doi.org/10.1007/s00535-007-2132-y