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Introduction: The third ventricular tumor is one of the most difficult lesions to approach. However, if a cavum septum pellucidum (CSP) and cavum vergae (CV) are present, approaching the tumor might be easier by exploiting them. Here, we describe the achievement of a favorable outcome in treating a patient with third ventricular tumor with CSP and CV using an anterior transcallosal interforniceal approach for tumor removal. Case description: A 52-year-old woman presented with acute hydrocephalus symptoms. Head imaging revealed a tumor filling the third ventricle and protruding into the right lateral ventricle through the right foramen of Monro. We also confirmed the presence of CSP and CV. After ventricular drainage, we performed a craniotomy to remove the tumor via an anterior transcallosal interforniceal approach. Almost all of the intraventricular tumor was removed easily without any complications, such as memory impairment. Conclusion: If CSP and CV are present, an anterior transcallosal interforniceal approach can be safely and effectively used to remove a third ventricular tumor.

Objective: Basilar artery occlusion (BAO) secondary to traumatic vertebral artery (VA) dissection caused by vertebral fracture is a rare cause of acute ischemic stroke, and optimal management, such as antithrombotic agents, surgical fixation, and parent artery occlusion (PAO), has been controversial. We report a case in which mechanical thrombectomy and PAO were performed for a BAO due to right VA dissection caused by a transverse foramen fracture of the axis vertebra. Case Presentation: A patient in her 80s suffered from a backward fall, and a neck CT revealed a fracture and dislocation of the right lateral mass of the axis and a compressed transverse foramen. The patient was instructed to admit and to remain in bed rest; however, she suddenly lost consciousness the following day. The CTA revealed right VA occlusion and BAO; therefore, the patient underwent mechanical thrombectomy and the BAO was successfully reperfused but the VA stenotic dissection remained. PAO of the right VA was performed on the fifth day after the accident to prevent BAO recurrence. Conclusion: Mechanical thrombectomy is an effective treatment for BAO caused by VA dissection, and PAO may contribute to the prevention of stroke recurrence. [ABSTRACT FROM AUTHOR]