intracranial dissecting aneurysm

例句：

1. 1. The patient was diagnosed with an intracranial hemorrhage.
   患者被诊断出颅内出血。
2. 2.The surgery involved removing the tumor from the patient's intracranial cavity.
   手术涉及从患者的颅内腔移除肿瘤。
3. 3.The patient had to undergo extensive testing due to a suspected intracranial infection.
   由于怀疑颅内感染，患者不得不接受广泛的测试。