title: Autoimmune pancreatitis associated with a pancreatic pseudocyst treated by distal pancreatectomy with splenectomy: case report.
abstract: Autoimmune pancreatitis is a unique type of chronic pancreatitis, which is rarely associated with pseudocyst. A 48-year-old lady was admitted to our department with a rapidly growing cystic mass in the pancreatic tail with an elevated concentration of serum carbohydrate antigen 19-9 (CA19-9). She had a history of autoimmune pancreatitis and received steroid treatment. Imaging studies demonstrated a cystic mass in the pancreatic tail. The mass kept growing despite restoration of steroid treatment. Eventually, the patient underwent distal pancreatectomy with splenectomy. Histopathological examination revealed the existence of pseudocyst, significant lymphocytic infiltration, and fibrotic change in the pancreatic tail.
authors.forename: Xiao-Bo
authors.initials: XB
authors.lastname: Xu
authors.forename: Ying-Shen
authors.initials: YS
authors.lastname: Wu
authors.forename: Wei-Lin
authors.initials: WL
authors.lastname: Wang
authors.affiliation: Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, 79# Qing Chun Road, Hangzhou 310000, China. shusenzheng@zju.edu.cn.
authors.forename: Shu-Sen
authors.initials: SS
authors.lastname: Zheng
mesh_terms: D001327:Autoimmune Diseases / Q000209:etiology / Q000473:pathology / Q000601:surgery*; D005260:Female; D006801:Humans; D008875:Middle Aged; D010180:Pancreatectomy; D010190:Pancreatic Neoplasms / Q000150:complications / Q000473:pathology / Q000601:surgery*; D010192:Pancreatic Pseudocyst / Q000209:etiology / Q000473:pathology / Q000601:surgery*; D010195:Pancreatitis / Q000209:etiology / Q000473:pathology / Q000601:surgery*; D011379:Prognosis; D013156:Splenectomy; D014057:Tomography, X-Ray Computed