30 May 2021>: Articles
Systemic IgG4-Related Disease Masquerading as Cholangiocarcinoma: A Case Report Underscoring the Importance of Medical History
Challenging differential diagnosis, Rare disease, Educational Purpose (only if useful for a systematic review or synthesis)
Benjamin P.M. Gummlich A , Philipp Ströbel B , Ali Seif Amir Hosseini B , Albrecht Neesse D , Volker Ellenrieder D , Harald Schwörer A*DOI: 10.12659/AJCR.930729
Am J Case Rep 2021; 22:e930729
Figure 3A. Histological and immunohistochemical findings from the common bile duct (CBD) biopsy on admission. (a) Bile duct biopsy of the CBD with hematoxylin and eosin (HE) staining shows marked chronic inflammation with low-power magnification (×10) and increased numbers of plasma cells (b) at higher magnification (×400). Immunohistochemistry reveals increased numbers of immunoglobulin (Ig) G4-positive plasma cells (c) relative to IgG-positive forms (d) (immunoperoxidase, ×200).