Zygomatic arch simulating air-fluid level in the sphenoid sinus.
D000328:Adult; D003951:Diagnostic Errors; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D012852:Sinusitis / Q000000981:diagnostic imaging; D012887:Skull Fractures / Q000000981:diagnostic imaging; D013101:Sphenoid Sinus / Q000000981:diagnostic imaging*; D015050:Zygoma / Q000000981:diagnostic imaging*