In two cases intracranial extension of mucoceles of the paranasal sinu
s was safely removed by intranasal evacuation and drainage of the lesi
ons located in the paranasal sinus. The diagnosis was acertained in bo
th cases via intranasal approach. In addition, the volume of the intra
cranial lesions was reduced. This procedure is both effective and a le
ss invasive diagnostic treatment for the lesion.