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Related to Pterygomaxillary fissure: Pterygopalatine fossa, Pterygomandibular raphe
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Magnetic resonance imaging (MRI) (figure 1, A) and computed tomography (CT) demonstrated the presence of a large tumor that involved the pterygopalatine foramen, pterygomaxillary fissure, infratemporal fossa, cheek area, sphenoid sinus, and orbital apex.
The posterolateral wall of the antrum was then removed, leaving the maxillary sinus, nasal cavity, pterygopalatine fossa, and nasopharynx as a single large cavity that communicated with the infratemporal fossa through the narrow pterygomaxillary fissure. The fissure was subsequently widened with drills and curettes to create access to the infratemporal fossa (figure 3).
The mass also extended into the right masticator space through the pterygomaxillary fissure. It had eroded the base of the pterygoid plates and infiltrated the lateral pterygoid muscle.