infratemporal fossa


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infratemporal fossa

[¦in·frə′tem·prəl ′fäs·ə]
(anatomy)
An irregular space situated below and medial to the zygomatic arch, behind the maxilla and medial to the upper part of the ramus of the mandible.
References in periodicals archive ?
Tumor extends through the greater wing of the sphenoid into the infratemporal fossa.
Panoramic view of the dissection of the left infratemporal fossa showing the origin of the accessory meningeal artery (AMA) from the middle meningeal artery (MMA).
Caption: Figure 5: (a) Precontrast T1W axial image showing primary mass (arrow) in the alveolar process of maxilla and mandible with bony expansion, (b) postcontrast T1W fat saturated axial image showing enhancing intraosseous mass in maxilla and mandible, the parotid, and infratemporal fossa (arrows), (c) coronal STIR image showing narrow external auditory canal (arrow), (d) coronal postgadolinium image showing mass in infratemporal fossa, the parotid, and external auditory canal (arrows), (e) axial T2W image showing hypoplastic pterygoid and masseter muscles (arrows), and (f) coronal T2W image showing concave right mandibular ramus (chevron) and hypoplastic condyle with extension of mass into the TMJ (arrow).
Once the tooth has been displaced into infratemporal fossa it should be removed to prevent future infection and other consequence.
Endoscopic assisted antral window approach for type III nasopharyngeal angiofibroma with infratemporal fossa extension.
Radiographs showed the presence of the maxillary left third molar lying posterior to the maxilla in the infratemporal fossa (fig 1).
7) Patients with a tumor of the orbit or a nonparameningeal tumor in a head and neck site have a better prognosis than do patients with a parameningeal tumor (including nasal cavity tumors) or a tumor of the nasopharynx, paranasal sinus, middle ear, mastoid, infratemporal fossa, or pterygopalatine fossa; the worst prognosis is attributable to the possibility of subarachnoid spread.
The branches of mandibular division of inferior alveolar nerve may arise high in the infratemporal fossa as explained by Ikeda et al [23] in his study.
1) These tumors spread mainly by direct invasion into the temporal bone and neighboring structures such as the parotid, infratemporal fossa, dura, and brain.
It connects infratemporal fossa to the middle cranial fossa and transmits the mandibular nerve, accessory meningeal artery and lesser petrosal nerve and emissary vein which connects the cavernous venous sinus to the pterygoid venous plexus in the infratemporal fossa.
Computed tomography identified a mass with radiologic features suggestive of a malignancy of the maxillary sinus and orbit; the mass extended into the infratemporal fossa, parapharyngeal space, anterior antral wall, and surrounding soft tissue.
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