Falcine sinus, located in falx cerebri, is a rare anatomical structure that closes after birth.A 40-year-old man was admitted to the hospital complaining about an intermittent headache and epileptic seizure that developed over the past 1 year.It was seen that persistent falcine sinus is related to hypoplasia of the posterior third of the superior sagittal sinus.Small calibrated collateral vascular structures were noted at the supratentorial level, especially between the right sulci and the interhemispheric fissure.The right transverse sinus was not observed.In this case report, a very rare combination of the persistent falcine sinus with dural sinus and gray matter anomalies was presented with literature and imaging findings.