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Case Reports
. 2023 Dec;16(6):925-930.
doi: 10.1007/s12328-023-01837-3. Epub 2023 Jul 31.

A case of synchronous IgG4-associated pleuritis and type 1 autoimmune pancreatitis

Jun Noda  1 , Yuichi Takano  2 , Masataka Yamawaki  2 , Tetsushi Azami  2 , Fumitaka Niiya  3 , Naotaka Maruoka  2 , Nobuyuki Ohike  4 , Masatsugu Nagahama  2
Affiliations
Case Reports

A case of synchronous IgG4-associated pleuritis and type 1 autoimmune pancreatitis

Jun Noda et al. Clin J Gastroenterol. 2023 Dec.

Abstract

A 50-year-old man presented to the emergency department with left chest pain, epigastralgia, and low-grade fever for several days. A CT scan showed left pleural effusion, ground-glass opacities in the lower lobes of both lungs, and a capsule-like rim in the pancreas. ERCP showed narrowing of the main pancreatic duct. EUS-FNA was performed, but pathological findings showed no IgG4-positive cells. A thoracoscopic biopsy was performed, and pathological findings showed many IgG4-positive cells. A diagnosis of autoimmune pancreatitis and IgG4-associated pleurisy was made according to international diagnostic criteria. After that, oral steroid therapy was started, and left pleural effusion and pancreatic enlargement improved.

Keywords: Autoimmune pancreatitis; ERCP; EUS-FNA; IgG4-associated pleuritis.

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