Osteoma (paranasal sinus)


  • A benign, slowly growing lesion consisting of well-differentiated mature bone
  • Most osteomas are asymptomatic and are found incidentally when imaging the sinuses.
  • Most sinus osteomas occur in the frontal sinus, followed by the ethmoid and maxillary sinuses.
  • Due to the serious potential risks of surgery, osteomas of ethmoid sinus can be followed radiographically when they are asymptomatic.
  • Surgery is performed only in the presence of symptoms and signs and rarely for aesthetic worries.



Osteoma in the right ethmoid sinus