frontal sinus

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Related to Sinus frontalis: ethmoid sinus, frontal sinus
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Noun1.frontal sinus - one of a pair of cavities in the frontal bonefrontal sinus - one of a pair of cavities in the frontal bone
sinus - any of various air-filled cavities especially in the bones of the skull
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References in periodicals archive ?
Das Osteoid-Fibrom mit atypischerVerkalkung im Sinus frontalis. Acta Otolaryngol.
Mittheilung eines Falles vermatchlicher Pneumatocoele des Sinus frontalis. Montatsschr Ohrenheilkd 1898;32:467-9.