title: Posturally-evoked vomiting; Association with posterior fossa lesions.
abstract: Posturally-evoked vomiting (PEV) dissociated from vertigo was present in two patients with proven posterior fossa mass lesions. In both instances PEV was a major aspect of the patients' symptomatology before other findings clearly indicated the presence of an infratentorial mass lesion. A distinction is drawn between benign postural vertigo, which almost always indicates a benign disorder of the peripheral vestibular apparatus, and PEV which indicates a central lesion within the posterior fossa. A possible anatomic-physiologic basis is offered for PEV, based on the dissociation of the "vestibular syndrome," in which PEV increases while vertigo and nystagmus diminish.
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis; D000328:Adult; D002528:Cerebellar Neoplasms / Q000175:diagnosis*; D003388:Cranial Fossa, Posterior; D005260:Female; D005909:Glioblastoma / Q000175:diagnosis; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged; D009362:Neoplasm Metastasis; D011187:Posture; D014839:Vomiting / Q000209:etiology*