Posterior fossa arachnoid cysts can mimic Meniere's disease.
Arachnoid cysts constitute 1% of all intracranial space-occupying lesions. In the posterior fossa, they typically produce vague, nonspecific symptoms. However, a subset of these lesions can produce signs and symptoms indistinguishable from those of Meniere's disease. We discuss the clinical and laboratory features of 2 cases of posterior fossa arachnoid cysts mimicking Meniere's disease as well as the substantial resolution of symptoms in 1 patient after cysto-peritoneal shunt. Posterior fossa arachnoid cyst must be considered in the differential diagnosis of patients presenting with signs and symptoms of Meniere's disease.
O'reilly
Robert C
RC
Division of Otolaryngology, Nemours Children's Clinic-Wilmington, Alfred I duPont Hospital for Children, Wilmington, DE 19899, USA. roreilly@nemours.org
Hallinan
Erin K
EK
D016080:Arachnoid Cysts / Q000150:complications* / Q000175:diagnosis* / Q000628:therapy; D001259:Ataxia / Q000209:etiology; D001301:Audiometry, Pure-Tone; D001302:Audiometry, Speech; D003937:Diagnosis, Differential; D004584:Electronystagmography; D005260:Female; D006319:Hearing Loss, Sensorineural / Q000209:etiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008575:Meniere Disease / Q000175:diagnosis*; D008875:Middle Aged; D014012:Tinnitus / Q000209:etiology; D014717:Vertigo / Q000209:etiology