The sylvian fissure is the most identifiable feature of the superolateral brain surface and constitutes the main microneurosurgical corridor, given the high frequency of approachable intracranial lesions through this route. The sylvian fissure (or) lateral sulcus is a deep cleft on the inferior and lateral surfaces and has a short stem dividing into three rami. The sylvian fissure (SyF) is not merely a complex fissure that carries the middle cerebral artery and its branches from a neurosurgical viewpoint, the sylvian fissure can be considered a gateway connecting the surface to the depth of the anterior part of the brain‘s base. To study the morphoanatomic features of the distal sylvian fissure and the Suprasylvian Operculum and Radiological correlation of Opercular anatomy. 40 adult human brains, 20 on right side and 20 on left side both male and female were observed during surgery in Government Theni medical college and a study of morphoanatomy of ASyP, lateral fissure and frontoparietal opercula was done. The knowledge of these basic anatomical features and relationship can help us in locating the ASyP through an initial burr hole centred on ASqP intraoperatively. Also recognition of frontoparietal sulcal and gyral pattern becomes easy from the tridimensional understanding of the intracranial structures as emulated in this study. Preoperative planning can be done in advance with MR imaging. Intraoperatively it helps us in avoiding complications altering the course of the surgery if necessary with the above knowledge.