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Fig. 3 | Journal of Cardiothoracic Surgery

Fig. 3

From: IgG4-related lung disease with recurrent pulmonary lesions during steroid therapy and difficulty in differentiating from malignancy: a case report

Fig. 3

Microscopic examination. a HE staining showed an inflammatory cell infiltrate consisting of plasma cells, lymphocytes, and neutrophils. b Storiform fibrosis was observed using the silver impregnation method. c Immunohistochemical staining showed that there were approximately 40 IgG4-positive cells per HPF, and the IgG4/IgG ratio was approximately 20%

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