Heterotopic ossification beneath the upper abdominal incision after radical gastrectomy: Two case reports

Figure 1 Imaging examinations. A: Computed tomography (CT) scan 2 wk postoperatively in case 1 shows no obvious abnormality beneath the incision; B: CT scan 6 wk postoperatively in case 1 shows calcified tissue beneath the incision (arrow); C and D: Coronal and sagittal images of calcified tissue in case 1 between the incision and liver (arrow); E: CT scan 4 mo postoperatively in case 2 shows calcified tissue beneath the midline incision (arrow); F and G: Coronal and sagittal images in case 2 show extension of calcification (arrow).