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A 67-year-old male patient was admitted to hospital with upper abdominal pain, jaundice and pale stool for 2 weeks. Laboratory investigation showed highly elevated cholestatic parameters and transaminases but no increase of serum IgG4. MRI (figure 1) and endoscopic ultrasound (EUS) demonstrated a diffuse enlargement of the pancreas. Parenchymal biopsy taken by EUS-guided fine needle aspiration (FNA) contained storiform fibrosis with increased plasma cells expressing IgG4 (>30 cells/HPF) compatible with autoimmune pancreatitis type I. A steroid pulse therapy was initiated followed by maintenance therapy (prednisolone 5 mg/kg p.o.) and the patient recovered. One year later, the patient presented again with weight …
Contributors AA, TB, SR, MML and TP drafted the manuscript. QTT and RB made critical revisions for important intellectual content. All authors reviewed and approved the final article.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Patient and public involvement Patients and/or the public were not involved in the design, or conduct, or reporting, or dissemination plans of this research.
Provenance and peer review Not commissioned; externally peer reviewed.
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