title: The prevalence of pineal cyst in patients with cerebral palsy.
abstract: OBJECTIVE
  Pineal cysts are common incidental findings during magnetic resonance imaging (MRI) examinations. The etiology of pineal cyst development is still unclear. We aimed to determine whether there is an association between periventricular leukomalacia and pineal cyst prevalence.
  
  
  METHODS
  Clinical and MRI data of 201 patients with periventricular leukomalacia (110 female, 91 male; mean age, 6 years; range, 2-18 years) and 687 control patients (355 female, 332 male; mean age, 6 years¸ range, 2-18 years) who did not have any evidence of periventricular leukomalacia were independently evaluated by two radiologists for presence or absence of pineal cyst.
  
  
  RESULTS
  Pineal cysts were detected in 32.3% of the study group (65/201) and 8.4% of the control group (58/687) (P < 0.001). Patients with periventricular leukomalacia were more likely to have a pineal cyst. In terms of pineal cyst detection on MRI, interobserver reliability was high between the two radiologists.
  
  
  CONCLUSIONS
  The prevalence of pineal cysts is higher in patients with periventricular leukomalacia. We suggest that an ischemic process may have a role in the etiopathogenesis of pineal cyst development.
authors: Department of Radiology, Istanbul University Cerrahpasa Medical School, Istanbul, Turkey. evrimkilicdr@gmail.com.
authors: Evrim
authors: E
authors: Özmen
authors: Betül
authors: B
authors: Derinkuyu
authors: Cesur
authors: C
authors: Samancı
authors: Havva Akmaz
authors: HA
authors: Ünlü
authors: Tülin Hakan
authors: TH
authors: Demirkan
authors: Zehra Işık
authors: ZI
authors: Haşıloğlu
authors: Sebuh
authors: S
authors: Kuruoğlu
authors: İbrahim
authors: İ
authors: Adaletli
mesh_terms: D000293:Adolescent; D001927:Brain Diseases / Q000453:epidemiology* / Q000473:pathology; D002547:Cerebral Palsy / Q000453:epidemiology* / Q000473:pathology; D002648:Child; D002675:Child, Preschool; D003560:Cysts / Q000453:epidemiology* / Q000473:pathology; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D010870:Pineal Gland / Q000473:pathology*; D015995:Prevalence; D012189:Retrospective Studies