Section Editor: Sandy Cheng-Yu Chen, M.D.
Taipei Medical University Hospital, Taipei, Taiwan
Figure Caption
The vein of Labbé (VL) drains the lateral surface of the temporal lobe to the distal transverse sinus. Isolated VL infarction is rare and can mimic hemorrhagic neoplasm or vascular malformation. Thrombosis of VL may cause acute vasogenic edema in the lateral temporal lobe, which appears bright on T2WI and not enhanced with gadolinium injection on T1WI (A, arrow). Vasogenic edema is typically followed by cytotoxic infarct with water diffusion restriction on diffusion weighted image (B, arrow). TOF MR venography may show non-visualization of the thrombosed vein (C, yellow arrow) as compared to the normal VL on the contralateral site (C, red arrow).