Figure 8. Changes in the pleural effusion, pleural thickening, and lung metastasis on CT. E-CT in May 2017 (A) showed the pleural effusion (white arrowhead) and pleural thickening (white arrow). E-CT 5 months later (B) revealed disappearance of pleural effusion and pleural thickening. On CT in January 2019 (C), left pleural effusion was observed again (black arrowhead) and a nodular shadow appeared in the lingular division of the left lung (black arrow). CT in September 2019 (D) revealed increased pleural effusion (black arrowhead) and an enlarged nodular shadow (black arrow). E-CT performed after receiving of RF hyperthermia (E) showed disappearance of lung metastasis (black arrows) and decrease in pleural effusion (black arrowheads).