Abscess of the sphenoid sinus and abscess of the brain stem. The "absent sphenoid sinus" sign.
D000038:Abscess; D001922:Brain Abscess / Q000000981:diagnostic imaging*; D001933:Brain Stem; D004194:Disease; D006801:Humans; D010254:Paranasal Sinus Diseases; D011859:Radiography; D013100:Sphenoid Bone; D013101:Sphenoid Sinus
BRAIN ABCESS/radiography; SPHENOID SINUS/diseases