Abstract
The major aspect of the surgical treatment of frontal sinus cyst (pyoccle and/or mucocele) is widening of the obstructed naso-frontal duct to allow drainage of the cyst. We usually take an extranasal approach to the frontal sinus (after Ogino's method) and put a silicon tube into the naso-frontal duct to drain it and to prevent re-obstruction of the duct.In our department during the past three years and eight months, 16 patients with frontal cyst were treated surgically. The first nine cases were treated by insertion of a simple tube and the next seven cases by insertion of a T-shaped tube.Simple tubes often slip out spontaneously before inner epithelization of the nasofrontal duct has taken place. Our T-shaped tube is adapted from the silicon drainage tube used for bile duct surgery. It is firmly placed in the naso-frontal duct, and is easily removed without complications.
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