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Storiform fibrosis in IgG4-related disease

Storiform fibrosis in IgG4-related disease
Pink, acellular areas stream through the lymphoplasmacytic infiltrate. This biopsy is from the maxillary sinus in a patient whose disease was limited to the maxillary and ethmoid sinuses.
IgG4: immunoglobulin G4.
Courtesy of John H Stone, MD.
Graphic 93432 Version 2.0