title: Autoimmune pancreatitis presenting as a pancreatic mass mimicking malignancy.
abstract: Autoimmune pancreatitis is a rare cause of chronic pancreatitis and pancreatic mass. We describe a case of focal autoimmune pancreatitis in a 51-year-old man presenting with obstructive jaundice and pancreatic mass, mimicking malignancy. The immunological test was suggestive of autoimmune pancreatitis, and the patient responded well to a course of steroids, with complete resolution of the pancreatic mass. Autoimmune pancreatitis, therefore, must be kept in mind as a differential diagnosis of pancreatic mass. Recognition of this disease by its typical radiological and serological findings may help to avoid unnecessary surgical resection.
authors.affiliation: Digestive Diseases Centre, Derby Hospitals NHS Foundation Trust, Uttoxeter Road, Derby DE22 3NE, UK. robertlo@doctors.org.uk
authors.forename: R S C
authors.initials: RS
authors.lastname: Lo
authors.forename: R K
authors.initials: RK
authors.lastname: Singh
authors.forename: A S
authors.initials: AS
authors.lastname: Austin
authors.forename: J G
authors.initials: JG
authors.lastname: Freeman
mesh_terms: D001327:Autoimmune Diseases / Q000175:diagnosis; D001706:Biopsy; D002908:Chronic Disease; D003937:Diagnosis, Differential; D006801:Humans; D007166:Immunosuppressive Agents / Q000627:therapeutic use; D041781:Jaundice, Obstructive / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D010190:Pancreatic Neoplasms / Q000175:diagnosis; D050500:Pancreatitis, Chronic / Q000175:diagnosis*; D013256:Steroids / Q000627:therapeutic use; D014057:Tomography, X-Ray Computed / Q000379:methods
chemical_list: D007166:Immunosuppressive Agents; D013256:Steroids