Pyriform Aperture
Pronunciation: PIR-ih-form AP-er-chur
The pear-shaped bony opening of the nasal cavity in the skull, used as an anatomical landmark for perinasal filler placement.
Full Definition
The pyriform aperture is the anterior bony inlet of the nasal cavity, shaped roughly like an inverted pear. In cosmetic dermatology and aesthetic medicine writing, it serves as a precise anatomical reference point for deep filler injections targeting perinasal hollowing and lip support. Editors must preserve the correct spelling 'pyriform' (sometimes alternatively spelled 'piriform') and note that either spelling may be accepted depending on the style guide, but consistency within a document is mandatory. The term should not be confused with the pyriform sinus, a structure of the hypopharynx.
Usage
Usage note: Both 'pyriform' and 'piriform' appear in peer-reviewed literature; flag inconsistency within a single document but do not impose one spelling without author instruction.
In Context
- "Filler injected at the pyriform aperture can restore anterior nasal projection lost through mid-face descent." — Aesthetic medicine review article
- "The manuscript used 'pyriform' and 'piriform' interchangeably; editors standardised to 'pyriform' throughout." — Copy-editing annotation