infratemporal fossa

(redirected from Pterygomaxillary fossa)
Also found in: Medical.

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 ?
4,8-10) Other findings include occlusion of the maxillary sinus infundibulum (secondary to retraction of the uncinate process against the inferomedial orbital wall), an enlarged middle meatus with lateral retraction of the middle turbinate, deviation of the nasal septum, and an increase of adipose tissue in the pterygomaxillary fossa.
CT findings included complete opacification of the left maxillary sinus, inward retraction and thinning of all sinus walls, enophthalmos, increased orbital volume, occlusion of the maxillary sinus infundibulum, an enlarged middle meatus with lateral retraction of the middle turbinate, and an increase in pterygomaxillary fossa adipose tissue (figure 2).
In this article, we describe a new case, which involved the right nasal cavity, ethmoid sinus, and pterygomaxillary fossa and extended into the cranial cavity.