Preoccipital notch

Radiopaedia • CC-by-nc-sa 3.0 • de

The preoccipital notch is an indentation approximately 5 cm in front of the occipital pole on the inferolateral border of the temporal lobe. It is a significant landmark as the occipital lobe lies behind the lateral parietotemporal line, joining the preoccipital notch and the parieto-occipital sulcus.