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The pyriform sinus (also piriform recess, piriform sinus, piriform fossa, or smuggler's fossa) is a small recess on either side of the laryngeal inlet. It is bounded medially by the aryepiglottic fold, and laterally by the thyroid cartilage and thyrohyoid membrane. [1] The fossae are involved in speech.
Clinical significance At the ... "Rosenmullers fossa". Medcyclopaedia. GE. Archived from the original on 2007-06-20. This page was last edited on 13 ...
3 Clinical significance. ... tonsillar fossa, and tonsillar (faucial) ... The laryngopharynx includes three major sites: the pyriform sinus, ...
3 Clinical significance. 4 Other animals. 5 See also. 6 References. 7 External links. ... The piriform cortex, or pyriform cortex, is a region in the brain, ...
Superiorly, the retropharyngeal space terminates at the base of the skull (more specifically, at the clivus [2]). [1] [5] Inferiorly, the true RPS terminates at a variable level along the upper thoracic spine with the fusion of alar fascia and visceral fascia; [1] sources either give the inferior termination of the true RPS as occurring at approximately the vertebral level of T4 [2] or at a ...
These staging systems attempt to standardize clinical trial criteria for research studies and define prognostic categories of disease. Head and neck cancers are staged according to the TNM classification system, where T is the size and configuration of the tumor, N is the presence or absence of lymph node metastases, and M is the presence or ...
Clinical significance. In nasopharyngeal carcinoma, the tumor may extend laterally and involve this sinus involving the mandibular nerve.
It has clinical importance in otolaryngology due to parapharyngeal space tumours and parapharyngeal abscess developing in this area. It is also a key anatomic landmark for localizing disease processes in the surrounding spaces of the neck; the direction of its displacement indirectly reflects the site of origin for masses or infection in ...