Background:Autoimmune pancreatitis(AIP)is a well-recognized fibroinflammatory disease of the pancreas.Despite the significant number of studies published on AIP type 1 and 2,no studies have been focused on AIP type no...Background:Autoimmune pancreatitis(AIP)is a well-recognized fibroinflammatory disease of the pancreas.Despite the significant number of studies published on AIP type 1 and 2,no studies have been focused on AIP type not otherwise specified(NOS)and therefore very little is known about clinical features and long-term outcomes of these patients.The aim of this study was to investigate clinical and radiological features of AIP type NOS-patients.Methods:Patients classified as AIP type NOS at clinical onset included in our database prospectively maintained since 1995 were evaluated.Epidemiological,clinical data were collected and analyzed.Results:Forty-six patients were included in the study.The clinical onset was mainly characterized by weight loss,jaundice and acute pancreatitis.Eight patients(17.4%)were reclassified as AIP type 2 during follow-up because of the development of ulcerative colitis.Seven patients(15.2%)experienced relapse after steroid treatment but only one(2.2%)needed immunosuppressive drugs because of recurrent relapses.Conclusions:AIP type NOS shares clinical features similar to AIP type 2 and a relevant proportion of patients was reclassified as AIP type 2 during follow-up because of the development of ulcerative colitis.The risk of relapse is low but not irrelevant.展开更多
文摘Background:Autoimmune pancreatitis(AIP)is a well-recognized fibroinflammatory disease of the pancreas.Despite the significant number of studies published on AIP type 1 and 2,no studies have been focused on AIP type not otherwise specified(NOS)and therefore very little is known about clinical features and long-term outcomes of these patients.The aim of this study was to investigate clinical and radiological features of AIP type NOS-patients.Methods:Patients classified as AIP type NOS at clinical onset included in our database prospectively maintained since 1995 were evaluated.Epidemiological,clinical data were collected and analyzed.Results:Forty-six patients were included in the study.The clinical onset was mainly characterized by weight loss,jaundice and acute pancreatitis.Eight patients(17.4%)were reclassified as AIP type 2 during follow-up because of the development of ulcerative colitis.Seven patients(15.2%)experienced relapse after steroid treatment but only one(2.2%)needed immunosuppressive drugs because of recurrent relapses.Conclusions:AIP type NOS shares clinical features similar to AIP type 2 and a relevant proportion of patients was reclassified as AIP type 2 during follow-up because of the development of ulcerative colitis.The risk of relapse is low but not irrelevant.
