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Mucocele of the left frontal sinus and orbit. Photograph of the patient (above, left) and sinus CT scan in coronal projection (above, right) of the patient before surgery. Photograph of the patient (below, left) and CT scan (below, right) of the patient after frontal sinus obliteration, with B-G and calvarial bone transplantation in the roof of the left orbit. (Adapted from Aitasalo and Peltola.34)
