pterygopalatine fossa


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pterygopalatine fossa

[¦ter·ə·gō′pal·ə‚tēn ′fäs·ə]
(anatomy)
The gap between the pterygoid process of the sphenoid bone and the maxilla and palatine bone.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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The needle was advanced into the pterygopalatine fossa until it was considered to be in close proximity to the maxillary nerve and injection of methylene blue dye was then performed.
Measurement of Needle Penetration Depth into the Pterygopalatine Fossa. A 25-gauge, 32 mm needle was bent at 45[degrees] angle immediately after the hub, at the beginning of the shaft, and a rubber stopper was introduced into the needle.
The needle is introduced using an out-of-plane approach to target the pterygopalatine fossa (the area anterior to the lateral pterygoid plate) (Figures 8(a)-8(c); Table 1) [18, 19].
Nasal Cavity 19 Nasopharynx 23 Extra-nasopharyngeal extension with multiple sinus involvement combination: Sphenoid 19 Ethmoid 9 Maxillary antrum 7 Pterygopalatine fossa 10 Infra-temporal fossa 6 Cheek and temporal fossa 3 Orbit 1 Intracranial extension 3 Table 8.
Jian (oral and maxillofacial surgery, former Hunan Medical U., China) outlines surgical methods for removing tumors in the pterygopalatine fossa and adjacent parts of the brain.
A light brown mass was found infiltrating the muscles of the pterygopalatine fossa and involving the joint capsule of the temporomandibular joint.
The axial projection can demonstrate several characteristics, including a rounded mass within the nasopharynx; tumor extension in the nasal cavity; widening of the pterygopalatine fossa on the side of the tumor; distortion of facial planes in the subtemporal space; indentation of the posterior wall of the antrum by pressure erosion from the tumor mass; and possible invasion of the orbit, sphenoid sinus or middle cranial fossa.[5] Of the above-mentioned characteristics, it is most important to visualize intracranial extensions because they greatly affect the choice of treatment.
The investigations suggested that she had a carcinoma in the pterygopalatine fossa on the right side.
"Endoscopic endonasal approach for the treatment of benign schwannoma of the sinonasal tract and pterygopalatine fossa." American journal of rhinology 2002;16(2):113-118.
MRI showed a large enhancing soft tissue mass on the right pterygopalatine fossa, measuring 5 x 4.2 x 3.8 cm (Fig.
Chronic otitis caused by heterotopic brain tissue in pterygopalatine fossa. Int J Pediatr Otorhinolaryngol Extra 2007;2(4):235-7.