title: Retrocerebellar arachnoid cyst with syringomyelia: a case report.
abstract: Association of syringomyelia with retrocerebellar arachnoid cysts is rare. A case of 14 year old female is being reported, who presented with hydrocephalus caused by a large midline retrocerebellar infravermal arachnoid cyst leading to obstruction of the outlet foramina of the fourth ventricle. There was associated syringomyelia. The pathogenesis of syringomyelia is discussed. The need to evaluate cervical spinal cord by taking T1 weighted sagittal sections in all the patients of large posterior fossa mass lesions causing obstruction to the outlet foramina of the fourth ventricle has been stressed, in order to detect associated syringomyelia.
authors.affiliation: Department of Radiodiagnosis and Imaging and Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, 226014, India.
authors.forename: R
authors.initials: R
authors.lastname: Jain
authors.forename: V
authors.initials: V
authors.lastname: Sawlani
authors.forename: R
authors.initials: R
authors.lastname: Phadke
authors.forename: R
authors.initials: R
authors.lastname: Kumar
mesh_terms: D000293:Adolescent; D016080:Arachnoid Cysts / Q000150:complications* / Q000473:pathology / Q000601:surgery; D005260:Female; D006801:Humans; D006849:Hydrocephalus / Q000150:complications / Q000473:pathology / Q000601:surgery; D008279:Magnetic Resonance Imaging; D013595:Syringomyelia / Q000150:complications* / Q000473:pathology / Q000601:surgery