Supra agger frontal cell

Supra agger frontal cells are an anatomical variant of the paranasal sinuses, included in the International Frontal Sinus Anatomy Classification.

Gross anatomy

Anterior-lateral ethmoidal cell that extends into the frontal sinus. A small SAFC will only extend into the floor of the frontal sinus, whereas a large SAFC may extend significantly into the frontal sinus and may even reach the roof of the frontal sinus.

The supra agger frontal cells push the drainage pathway of the frontal sinus medial, posterior or posteromedially.