title: IgG4-related inflammatory pseudotumour mimicking a hepatic abscess impending rupture.
abstract: A 50-year-old man presenting with sudden onset right upper quadrant pain and no constitutional symptoms was found to have two necrotic liver masses on imaging, consistent with hepatic abscesses unresponsive to systemic antibiotics and percutaneous drainage. The patient deteriorated and developed symptoms consistent with impending rupture. He therefore subsequently underwent right hepatic segmentectomy. All cultures were negative and histopathology confirmed IgG4 related disease/inflammatory pseudotumour of the liver. Postoperatively, the patient was asymptomatic with no IgG4 disease activity in other organs.
authors.affiliation: Department of Internal Medicine, Einstein Medical Center Philadelphia, Philadelphia, Pennsylvania, USA.
authors.forename: Ramzi
authors.initials: R
authors.lastname: Mulki
authors.affiliation: Department of Internal Medicine, Einstein Medical Center Philadelphia, Philadelphia, Pennsylvania, USA.
authors.forename: Shivani
authors.initials: S
authors.lastname: Garg
authors.affiliation: Department of Gastroenterology, University of Nebraska Medical Center, Omaha, Nebraska, USA.
authors.forename: Wuttiporn
authors.initials: W
authors.lastname: Manatsathit
authors.affiliation: Department of Pathology, Einstein Medical Center Philadelphia, Philadelphia, Pennsylvania, USA.
authors.forename: Ronald
authors.initials: R
authors.lastname: Miick
mesh_terms: D000893:Anti-Inflammatory Agents / Q000008:administration & dosage; D004322:Drainage; D006104:Granuloma, Plasma Cell / Q000175:diagnosis* / Q000188:drug therapy*; D006801:Humans; D007074:Immunoglobulin G / Q000032:analysis*; D008099:Liver / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D010950:Plasma Cells / Q000473:pathology*; D011241:Prednisone / Q000008:administration & dosage; D014057:Tomography, X-Ray Computed
chemical_list: D000893:Anti-Inflammatory Agents; D007074:Immunoglobulin G; D011241:Prednisone