title: Transient choroid plexus cysts and benign asymmetrical ventricles: a case suggesting a possible link: case report.
abstract: OBJECTIVE
  Brain magnetic resonance imaging scans occasionally reveal asymmetrical ventricles with no identifiable cause. A case is presented that highlights a possible connection between transient choroid plexus cysts and benign asymmetrical ventricles.
  
  
  METHODS
  The patient was a 2.5-week-old asymptomatic boy. Transcranial ultrasound and magnetic resonance imaging revealed the infant to have a left frontal horn choroid plexus cyst and a mildly dilated left lateral ventricle. Head circumference was at 90% of the norm for age. The neurological examination revealed nothing abnormal. Four months later, follow-up magnetic resonance imaging revealed complete resolution of the cyst with persistent ventricular asymmetry.
  
  
  METHODS
  No surgical intervention was undertaken. The lesion was assessed via x-ray.
  
  
  CONCLUSIONS
  Spontaneously resolving choroid plexus cysts of infancy causing outflow obstruction of the lateral ventricle may be one of the underlying causes of benign asymmetrical ventricles.
authors.affiliation: Department of Neurosurgery, Tufts New England Medical Center, and Floating Hospital for Children, Boston, Massachusetts 02111, USA.
authors.forename: Carl B
authors.initials: CB
authors.lastname: Heilman
authors.forename: Vasilios A
authors.initials: VA
authors.lastname: Zerris
mesh_terms: D001927:Brain Diseases / Q000175:diagnosis*; D020863:Central Nervous System Cysts / Q000175:diagnosis*; D002552:Cerebral Ventricles / Q000473:pathology*; D002831:Choroid Plexus / Q000473:pathology*; D004292:Dominance, Cerebral / Q000502:physiology*; D004453:Echoencephalography; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D008279:Magnetic Resonance Imaging; D008297:Male; D009460:Neurologic Examination; D012075:Remission, Spontaneous