The insular lobe (insula or island) refers to a region on the lateral surface of the hemisphere that lags behind in growth during development and is overlapped by the more rapidly growing adjacent regions of the hemisphere[^1].
Anatomy
The hemispheric regions that overlie the insula are referred to as the Operculum. Based on the adjacent cerebral lobes, a frontal operculum, a parietal operculum, and a temporal operculum are distinguished. The insular lobe is approximately triangular in shape and is bounded on all three sides by the Sulcus circularis insulae. The Sulcus centralis insulae divides the insula into an oral and a caudal portion. At the inferior pole, the limen insulae, the insular region transitions into the olfactory cortex[^1].
