Background <p>Anatomical triangles formed by intersecting neurovascular structures serve as crucial landmarks, delineating surgical pathways and guiding neurosurgeons during dissections. These triangular systems have been integrated into skull base surgery, offering a framework to navigate intricate regions such as the cavernous sinus. This study aims to organize and clarify the anatomy of the suprasellar and parasellar triangles through a detailed, step-by-step dissection, providing a comprehensive roadmap for surgeons. Main body of the abstract A step-by-step dissection of the suprasellar and parasellar regions was performed on a fresh-frozen cadaver to elucidate the anatomy of the middle fossa triangles. The suprasellar and parasellar regions were exposed through a subfrontal approach, allowing for an expanded superior view and the identification of anatomical triangles.</p> Conclusion <p>The skull base is one of the most complex anatomical regions, but a systematic study grounded in direct approaches can significantly simplify its surgical exploration. Mastering and applying these triangular landmarks, combined with a safe approach, can mitigate surgical challenges and bolster a surgeon's confidence in navigating this intricate area.</p>