title: Position-dependent urinary retention in a traumatic brain injury patient: a case report.
abstract: BACKGROUND
  Voiding disorders are common complication after traumatic brain injury. Usually, they are caused by neurogenic bladder although they can also occur as a result of other pathologic processes and conditions as well as side effects of medications.
  
  
  METHODS
  A 62-year-old traumatic brain injury patient with position-dependent urinary retention is presented in this article. Neurogenic bladder with detrusor sphincter dyssynergia was suspected initially, with detection of multiple small bladder stones as the final cause of his urinary retention afterwards.
  
  
  CONCLUSIONS
  Careful clinical, imaging, and urodynamic evaluation must be performed in traumatic brain injury patients to exclude the coexistence of two or more factors leading to urinary dysfunction in this population group.
authors.affiliation: Department of Rehabilitation Medicine, Boston University Medical Center, Boston, Massachusetts, USA.
authors.forename: Ivan
authors.initials: I
authors.lastname: Chernev
authors.forename: Kun
authors.initials: K
authors.lastname: Yan