07 August 2026
: Case report 
Transient Ischemic Attack Progressing to Top-of-the-Basilar Syndrome: A Case Report
Unusual clinical course, Unusual or unexpected effect of treatment, Educational Purpose (only if useful for a systematic review or synthesis)
Guoqing Zhou BEF 1, Yu Xu A 2*DOI: 10.12659/AJCR.953007
Am J Case Rep 2026; 27:e953007
Figure 2 (A–C) No obvious abnormal lesions were found in the bilateral thalami and midbrain. (D–F) Computed tomography angiography reveals severe stenosis to occlusion in the P1 segment of the left posterior cerebral artery.