The aim of the brain tumour surgery is the maximal tumour resection with the minor neurological post operatory deficit; nevertheless this is not always possible mainly in case of lesions near to functional areas. Despite the use of numerous technologies of images before and during and during the operative period, the functional result is unknown but after the surgery when the deficit is irreversible. The awake craniotomy is a safe technique and that it allows to evaluate the neurological status during the surgical act and to detect prematurely any deficit in the function, which allow us optimize the results of the tumour resection. We presented the first report of case in Peru of awake craniotomy for low grade glioma resection, carried out in the Guillermo Almenara National Hospital in February 2008.

  Key Words:  Awake Craniotomy,  surgery,  low grade astrocytoma