A surprising tumor after cardiac surgery

An 80-year-old man presented with symptomatic aortic stenosis. Four months after aortic valve replacement, the patient presented with an impressive pre-sternal 10-cm mass evolving since few weeks (Fig. ​(Fig.1).1). Surgical removal of the tumor concluded to a myxofibrosarcoma (Fig. ​(Fig.2),2), which was followed by radiotherapy. Figure 1: Axial (left) and sagittal (right) scanography showing a 103.9 × 76.7 mm pre-sternal tumor. Figure 2: Macroscopic view of the tumor (left and middle) and hematoxylin, eosin and safron staining with a 400 magnification showing a grade 2 myxofibrosarcoma (right).