Report of Two Cases Intracerebral Tension Pneumocephalus

Intracerebral tension pneumocephalus is a rare disorder. Only five cases of them have been reported since 1985. We report two cases of intracerebral tension pneumocephalus with traumatic rhinorrhea. In the first case, intracerebral tension pneumocephalus was induced by lumbar puncture performed two months after trauma. In the second case, intracerebral tension pneumocephalus was observed on computed tomography two months after trauma without surgical intervation. In the second case, rhinorrhea continued after the surgical repair of dural tear. Subdural tension pneumocephalus was induced by lumbar puncture to evaluate continuous rhinorrhea. Both cases had intracerebral tension pneumocephalus where traumatic brain contusion was observed on the initial computed tomography. Two handred and flinty-one cases of pneumocephalus have been reported since 1985. In those cases, 50 cases were diagnosed as tension pneumocephalus. Eighty percent cases of tension pneumocephalus was observed after proceders such as the not surgical or operation. We suggest that intracerebral tension pneumocephalus may be induced by surgical intervation, especially for the cases with brain contusion and liquorrhea. (