The pterygopalatine fossa and canal.
D002294:Carcinoma, Squamous Cell / Q000000981:diagnostic imaging*; D018219:Histiocytoma, Benign Fibrous / Q000000981:diagnostic imaging*; D006801:Humans; D008437:Maxilla / Q000000981:diagnostic imaging*; D008440:Maxillary Fractures / Q000000981:diagnostic imaging*; D009303:Nasopharyngeal Neoplasms / Q000000981:diagnostic imaging*; D011859:Radiography; D013100:Sphenoid Bone / Q000000981:diagnostic imaging* / Q000293:injuries; D013679:Technology, Radiologic