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Piriform Recess
Respiratory System

Piriform Recess

Recessus piriformis

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Structure/Morphology

The piriform recesses are shallow depressions in the laryngopharynx. They sit on both sides of the laryngeal inlet.

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Key Features/Anatomical Relations

The piriform recess sits lateral to the aryepiglottic folds and medial to the thyroid cartilage and thyrohyoid membrane.

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Piriform Sinus

ScienceDirect image

Lateral wall piriform sinus cancers invade the thyroid cartilage and soft tissue of the neck, including the carotid sheath.

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