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  2. Retropharyngeal space - Wikipedia

    en.wikipedia.org/wiki/Retropharyngeal_space

    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 ...

  3. Carotid sheath - Wikipedia

    en.wikipedia.org/wiki/Carotid_sheath

    The carotid sheath is situated at each lateral boundary of the retropharyngeal space, [3] deep to the sternocleidomastoid muscle. [ 2 ] : 579 [ 3 ] [ 2 ] The pharynx is situated medial to the carotid sheath, (in the suprahyoid region) the parotid gland laterally to it, in the suprahyoid region the infratemporal fossa anterior to it, and the ...

  4. Retropharyngeal abscess - Wikipedia

    en.wikipedia.org/wiki/Retropharyngeal_abscess

    Retropharyngeal abscess (RPA) is an abscess located in the tissues in the back of the throat behind the posterior pharyngeal wall (the retropharyngeal space).Because RPAs typically occur in deep tissue, they are difficult to diagnose by physical examination alone.

  5. Parapharyngeal space - Wikipedia

    en.wikipedia.org/wiki/Parapharyngeal_space

    The parapharyngeal space is shaped like an inverted pyramid. Lateral and inferior to the parapharyngeal space is the carotid sheath, containing the internal carotid artery and cranial nerves IX, X and XI. Behind both the parapharyngeal space and carotid space lies the retropharyngeal space, and deep to this a potential space known as the danger ...

  6. Retropharyngeal lymph nodes - Wikipedia

    en.wikipedia.org/wiki/Retropharyngeal_lymph_nodes

    The retropharyngeal lymph nodes, from one to three in number, lie in the buccopharyngeal fascia, behind the upper part of the pharynx and in front of the arch of the atlas, being separated, however, from the latter by the longus capitis. Their afferents drain the nasal cavities, the nasal part of the pharynx, and the auditory tubes.

  7. Retrovisceral space - Wikipedia

    en.wikipedia.org/wiki/Retrovisceral_space

    The retrovisceral space is divided into the retropharyngeal space and the danger space by the alar fascia. It is of particular clinical importance because it is a main route by which oropharyngeal infections can spread into the mediastinum. Some sources say the retrovisceral space is the same as the retropharyngeal space. [1]

  8. Fascial spaces of the head and neck - Wikipedia

    en.wikipedia.org/wiki/Fascial_spaces_of_the_head...

    Fascial spaces (also termed fascial tissue spaces [1] or tissue spaces [2]) are potential spaces that exist between the fasciae and underlying organs and other tissues. [3] In health, these spaces do not exist; they are only created by pathology, e.g. the spread of pus or cellulitis in an infection.

  9. Current Procedural Terminology - Wikipedia

    en.wikipedia.org/wiki/Current_Procedural_Terminology

    1.1.5 Codes for radiology: 70000–79999. 1.1.6 Codes for pathology and laboratory: 80000–89398. ... CPT II codes are billed in the procedure code field, just as ...