Background: Cranionasal communicating tumors often originate from the extra-axial intracranial tissue, nasal cavity, and sinuses, and mostly invade the anterior skull base, leading to communication between the cranial and nasal cavities. Cranionasal communicating tumors are clinically rare and thus have been rarely reported in the literature.
Objective: To investigate the clinical outcomes of combined transcranial and endoscopic transnasal approaches in the surgical management of cranionasal communicating tumors.