Figure 1. 75-year-old male with unresectable liver metastases originating from gastric cancer (patient number 2, Table 1). (a) Transverse non-enhanced brain CT before implantation shows no remarkable findings in the left thalamus. (b) Transverse non-enhanced brain CT after implantation of the port-catheter system and the onset of brain infarction symptoms (see Table 1) shows a low density area in the left thalamus (arrow) diagnosed as a brain infarction.

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