title: Dating of Acute and Subacute Subdural Haemorrhage: A Histo-Pathological Study.
abstract: BACKGROUND
  Microscopic study of the organization of the Subdural Haemorrhage (SDH) verified against the time period can help us in the determination of its age which has serious medico-legal implications. Very few studies concerning the dating of SDH are present in the literature.
  
  
  OBJECTIVE
  This study was conducted for dating the early subdural haemorrhage by routine histopathological stains.
  
  
  METHODS
  A prospective analytical study was conducted during July 2009 to December 2010. A total of 100 cases (50 males and 50 females) fulfilling the inclusion and exclusion criteria were included in this study. Routine histopathological staining of the subdural haematoma was done.
  
  
  RESULTS
  Correlation between the frequency of a given histomorphological phenomenon and the length of the Post-Traumatic Interval (PTI) was evidential. All the histomorphological features, when correlated with PTI groups, were found to be statistically significant, except for Polymorphonuclear Leukocytes (PMN).
  
  
  CONCLUSIONS
  We concluded that routine histopathology was reliable in the dating of early subdural haemorrhages.
authors.affiliation: Assistant Professor, Department of Forensic Medicine, Post Graduate Institute of Medical Education and Research , Chandigarh, India .
authors.forename: Murali G
authors.initials: MG
authors.lastname: Rao
authors.affiliation: Professor and Head of Department, Department of Forensic Medicine, Post Graduate Institute of Medical Education and Research , Chandigarh, India .
authors.forename: Dalbir
authors.initials: D
authors.lastname: Singh
authors.affiliation: Professor and Head of Department, Department of Histopathology Post Graduate Institute of Medical Education and Research , Chandigarh, India .
authors.forename: Rakesh Kumar
authors.initials: RK
authors.lastname: Vashista
authors.affiliation: Professor, Department of Statistics, Panjab University , Chandigarh, India .
authors.forename: Suresh Kumar
authors.initials: SK
authors.lastname: Sharma
keywords: Medico-legal; Polymorphonuclear leuckocytes; Post-traumatic interval; Subdural haematoma