VG H&N course intro Florence 2016.pptx

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Spaces defined by DCF
 Parapharyngeal PPS
 Parotid PS
 Pharyngeal mucosal PMS
 Masticator MS
 Carotid CS
 Retropharyngeal / Danger RPS / DS
 Perivertebral PVS
Parapharyngeal space (PPS)
Central location
PPS
Parapharyngeal space (PPS)
Contents
 FAT
– easy to see on routine CT /
MRI
 Vessels
– internal maxillary / ascending
pharyngeal art.
– pharyngeal venous plexus
PPS
Fat easily recognized on CT / MR
PPS
 From skull base 
submandibular gland
 Allows smooth motion
during mastication
 Primary lesions PPS rare
– Salivary gland remnants
– Branchiogenic anomaly
Branchial arch cyst