“…However, two of the cases showed no signs of primary or metastatic lesions, which undoubtedly added difficulty to the diagnosis, which was finally defined by craniotomy. 25,26 In the reported cases, 59.3% (16/27) of the patients accepted craniotomy, 18.5% (5/27) biopsy, 29.6% (8/27) radiotherapy, 11.1% (3/27) chemotherapy, 7.4% (2/27) systemic therapy, sorafenib,…”