"medial: perpendicular plate of the palatine bone 8"
"lateral: narrowing to the pterygomaxillary fissure"
"anterior: posterior wall of the maxillary sinus"
"posterior: sphenoid bone (pterygoid process and inferior aspect of the greater wing)"
"roof: body of the sphenoid bone and orbital process of palatine bone"
"floor: narrowing to palatine canals; pyramidal process of the palatine bone"
"medially: communicates with the nasal cavity via the sphenopalatine foramen, which transmits the sphenopalatine artery, the nasopalatine nerve and the posterior superior nasal nerves"
"laterally: communicates with the masticator space (or infratemporal fossa) via the pterygomaxillary fissure"
"anteriorly and superiorly: communicates with the orbit via the inferior orbital fissure 8"
"posteriorly and superiorly: communicates with the Meckel cave and cavernous sinus (of the middle cranial fossa) via the foramen rotundum 8"
"posteriorly and inferiorly: communicates with the middle cranial fossa via the vidian canal (also known as pterygoid canal), which transmits the vidian nerve, vidian artery and vidian vein."
"inferiorly: communicates with the palate via the greater and lesser palatine canals 8 (often these canals arise from the one canal, referred to as either the greater palatine canal or the pterygopalatine canal)"
"posteriorly and inferiorly: communicates with the middle cranial fossa via the vidian canal (also known as pterygoid canal), which transmits the vidian nerve, vidian artery and vidian vein."
"The pterygopalatine fossa contains fat and the following neurovascular structures:"
Expected headings
"Borders"
"Communications"
"Contents"
"Radiological appearance"
"CT"
"MRI"
"floor: narrowing to palatine canals; pyramidal process of the palatine bone"