44-year-old woman's insular brain tumour removed via eyebrow approach in world's first keyhole neurosurgery.

Chennai doctors successfully conducted the world's first keyhole surgery for an insular brain tumour via an eyebrow approach. The novel technique marks a significant advancement in neuro-oncology. A 44-year-old woman's deeply seated tumour was removed, which is challenging due to its location within the cerebral cortex, surrounded by vital areas controlling speech, movement, and layered by a dense network of blood vessels.