One of the paired, but seldom symmetrical, air spaces located between the inner and outer compact layers of the FRONTAL BONE in the forehead.
Synonyms: Frontal Sinus Sinus, Frontal
This is just here as a test because I lose it
Term information
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inflammation or sinusitis = FRONTAL SINUSITIS; fractures: coordinate FRONTAL SINUS /inj (IM) + SKULL FRACTURES (IM); neoplasms: coordinate IM with PARANASAL SINUS NEOPLASMS (IM)