Calcifying fibrous tumor of the mediastinum: A case report

Figure 1 Chest computed tomography. The oval tumor (shown by the arrows) was located on the lateral wall of the abdominal aortic artery, with uniform density and a size of about 4.5 cm × 3.0 cm. The boundary with surrounding tissues is clear. The computed tomography (CT) value of the flat scan is about 57 HU (A), and the enhanced CT value is about 113 HU (B).

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).