pyriform sinus
Laryngeal side pocket
The pyriform sinus is one of two pear-shaped recesses in the throat, located on either side of the larynx where the pharynx meets the esophagus.
Food and liquid pass through these channels during swallowing.
In medical contexts, the pyriform sinus is a common site for foreign objects to lodge and for certain cancers to develop.
Also spelled piriform sinus.
Medical swallowing difficulty
- bolusChewed food mass
- deglutitionAct of swallowing
- aspirationStrong desire for achievement
- peristalsisInvoluntary digestive muscle waves
residue · pooling · penetration · saliva · stasis · regurgitation · foreign body · propulsion
Lowest pharyngeal cavity region
- pharynxMuscular throat cavity
- epiglottisWindpipe-covering throat cartilage
- mucosaMoist organ lining
- oropharynxMid-throat cavity
nasopharynx · larynx · glottis · trachea · esophagus · hyoid bone · vocal cords
Cancer spreading beyond origin
- stagingPreparing for presentation
- biopsyTissue sample for diagnosis
- lymph nodeImmune system filter
- prognosisPredicted disease course
radiation therapy · chemotherapy · tumor · neoplasm · adenocarcinoma · epithelial · oncology · survival rate
Internal organ examination
- laryngoscopyVisual inspection of larynx
- CT scanTomographic diagnostic imaging
- MRIMagnetic body imaging
- barium swallowRadiological gastrointestinal examination
dysphagia
Medical swallowing difficulty
- bolusChewed food mass
- deglutitionAct of swallowing
- aspirationStrong desire for achievement
peristalsis · residue · pooling · penetration · saliva · stasis · regurgitation · foreign body · propulsion · clearance
hypopharynx
Lowest pharyngeal cavity region
- pharynxMuscular throat cavity
- epiglottisWindpipe-covering throat cartilage
- mucosaMoist organ lining
oropharynx · nasopharynx · larynx · glottis · trachea · esophagus · hyoid bone · vocal cords
metastasis
Cancer spreading beyond origin
- stagingPreparing for presentation
- biopsyTissue sample for diagnosis
- lymph nodeImmune system filter
prognosis · radiation therapy · chemotherapy · tumor · neoplasm · adenocarcinoma · epithelial · oncology · survival rate · laryngectomy
endoscopy
Internal organ examination
- laryngoscopyVisual inspection of larynx
- CT scanTomographic diagnostic imaging
- MRIMagnetic body imaging
barium swallow · transnasal · fiberoptic · radiology · asymmetry
- hypopharynx
- larynxvoice box, larynx, vocal cords, vocal folds, epiglottis
- vocal tractlarynx, pharynx, vocal cords, vocal folds, glottis