An additional aim was to determine the depth of needle penetration into
pterygopalatine fossa through GPC to help dentists avoid serious complications following regional block anesthesia.
The pattern seen on contrast-enhanced CT is an intensely stained lesion in the nasopharynx with widening of the
pterygopalatine fossa.[6] Contrast enhancement also allows the tumor to be located precisely in reference to the medial and lateral pterygoid.
He mentioned this at the Ear Nose and Throat clinic during follow-up of surgical drainage of a mucocele from the
pterygopalatine fossa six months before.
[4, 5] Yoshida and Kawase classified extracranial schwannomas into infratemporal, orbital and
pterygopalatine fossa components.[6] The schwannoma of orbit accounts for 1-4% of all orbital neoplasm.[7] The tumor has no significant sex predilection and age of presentation varies from 6 months to 72 years.
* II: Tumor invades the
pterygopalatine fossa or the maxillary, ethmoid, or sphenoid sinus with bone destruction.
Pterygopalatine fossa (PPF) is a common cavity in the skull and the face; its neurovascular content and communication path making them crucial in odontoestomatology (Daniels et al., 1983, 1998; Singh et al., 2001; Bleier & Mirza, 2006; Roberti et al., 2007).
As for head and neck involvement, in addition to the orbit and paranasal sinuses, other reported sites have included the neck, (4) infratemporal fossa, (8)
pterygopalatine fossa, (8) submandibular gland, (9) masseter space, (10) larynx, (11) oral cavity, (12) tonsils, (13) thyroid gland, (14) parotid gland, (15) nasopharynx, (16) temporal bone (mastoid, (17) middle ear cavity, (18) and inner ear (19), and trachea.
Inflammatory myofibroblastic tumor involving the
pterygopalatine fossa. AJNR Am J Neuroradiol 2001; 22: 518-520.
(10) Endoscopic and endoscopic-assisted surgery have become popular, (11) and several authors advocate this approach for tumors confined to the nasal cavity, sinuses, and
pterygopalatine fossa. (12,13) Surgical resection is not always possible for advanced cases (i.e., those with intracranial extension), however.
(3) Since then approximately thirty cases have been reported till 2009.2 These lesions can occur at several sites like buccal soft tissues, neck, infratemporal, or
pterygopalatine fossa and submandibular gland.
Other conditions and procedures which utilise the maxillary sinus and Caldwell luc as a conduit include, maxillary artery ligation, Vidian neurectomy,
pterygopalatine fossa surgeries and sphenopalatine artery libation to name a few.
Many studies have indicated that JNA originates in the
pterygopalatine fossa at the aperture of the pterygoid canal.