Fig. 11From: Imaging features and differential diagnoses of non-neoplastic diffuse mediastinal diseasesIgG4-related mediastinitis. A patient with fibrosing mediastinitis as an unusual mediastinal manifestation of IgG4-related disease. Three successive axial slices (a–c) show diffuse infiltration of the mediastinum with collaterals due to occlusion of the systemic veinsBack to article page