Epidural mucopyocele: diagnosis and management.

Mucopyoceles of the frontoethmoid sinuses occurring as an epidural mass are uncommon. Four patients with this condition have been managed over the last eight years by the authors. Two patients had early recurrence of their disease following carefully performed ablation and frontal craniectomy. Marsupialization, or permanently draining the ablated frontal sinus cavity into the nose, was the initial treatment of the other two patients, and subsequently the therapy of choice for all patients in this series.