Arachnoid cyst manifested as an ethmoid mass with cerebrospinal fluid rhinorrhea.
D001099:Arachnoid / Q000473:pathology / Q000601:surgery*; D002559:Cerebrospinal Fluid Rhinorrhea / Q000473:pathology / Q000601:surgery*; D003560:Cysts / Q000473:pathology / Q000601:surgery*; D003937:Diagnosis, Differential; D005005:Ethmoid Sinus / Q000473:pathology / Q000601:surgery*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed