Lobus insularis

The insular lobe (Insula or Island) is an area on the lateral surface of the hemisphere, which remains underdeveloped during growth and is overgrown by the more rapidly growing neighboring regions of the hemisphere[^1].

Anatomy

The hemisphere portions that cover the insula are referred to as the operculum. According to the adjacent cerebral lobes, the operculum is divided into the frontal operculum, the parietal operculum, and the temporal operculum. The insular lobe approximately takes the shape of a triangle, bounded on its three sides by the circular sulcus of the insula. The central sulcus of the insula divides the insula into an oral and a caudal section. At the lower pole, the limen insulae, the insular region transitions into the olfactory cortex[^1].

Illustration

Imaging