Fig. 2From: A preliminary study of IgG4 expression and its prognostic significance in oral squamous cell carcinomaImmunofluorescence detection of plasma cells. IgG4-positive plasma cells were diffusely distributed in the tumor stroma and near the tumor. Immunofluorescence was used to detect IgG4 (red). Nuclei were visualized using DAPI. Bar indicates 200 μmBack to article page