Calcifying fibrous tumor of the mediastinum: A case report

Figure 2 Hematoxylin and eosin staining. A: Tumor tissue consists of a large number of collagen fibrous connective tissue. The fibrous tissue can be seen to have scattered calcified foci. The interstitium is infiltrated by a small number of lymphocytes and plasma cells. The formation of lymphatic follicles is locally visible (magnification, ×40); B: Image shows dystrophic calcifications and gravel formation (magnification, ×100).