Fig. 4

Clinical course of CT findings in distant metastases. a shows the clinical course of the CT findings in patient 1, whose primary tumor is shown in Fig. 2d. The left pubic bone metastasis with an internal low-density area infiltrated the surrounding muscles. b shows the clinical course of the CT findings in patient 2, whose primary tumor is shown in Fig. 2i. Bilateral adrenal metastases with an internal low-density area gradually infiltrated the liver, left kidney, and diaphragmatic crura