Abundant immunoglobulin (Ig)G4-positive plasma cells in interstitial pneumonia without extrathoracic lesions of IgG4-related disease: is this finding specific to IgG4-related lung disease?
Satoshi IkedaAkimasa SekineTomohisa BabaKoji OkudelaTae IwasawaFumikazu SakaiKenji NotoharaKenichi OhashiTamiko TakemuraTakashi OguraPublished in: Histopathology (2016)
IP with marked IgG4-positive plasma cell infiltration without extrathoracic lesions of IgG4-RD had different pathological features from those of IgG4-RD, and it is appropriate to regard this as a separate entity.