IgG4-positive plasma cells in inflammatory pseudotumor (plasma cell granuloma) of the lung
Y Zen, S Kitagawa, H Minato, H Kurumaya… - Human pathology, 2005 - Elsevier
The association between IgG4 dysregulation and inflammatory pseudotumor (IPT) was first
reported in sclerosing pancreatitis. Recently, we described IPTs of the liver and breast, into
both of which many IgG4-positive plasma cells had infiltrated. In this study, we examined the
clinical and histological features of 9 cases of IPT (histologically corresponding to plasma
cell granuloma) of the lung with an emphasis on IgG4-positive plasma cell infiltration. The
lesions were characterized histologically by dense lymphoplasmacytic infiltrates intermixed …
reported in sclerosing pancreatitis. Recently, we described IPTs of the liver and breast, into
both of which many IgG4-positive plasma cells had infiltrated. In this study, we examined the
clinical and histological features of 9 cases of IPT (histologically corresponding to plasma
cell granuloma) of the lung with an emphasis on IgG4-positive plasma cell infiltration. The
lesions were characterized histologically by dense lymphoplasmacytic infiltrates intermixed …
