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The authors review their series of over 2000 brain tumors from the standpoint of studying effects of increased intracranial pressure on the brain stem and ways of improving the prognosis of this condition.
Space-consuming lesions with displacement of intracranial contents result in cisternal encroachment either of brain (cisternal herniation) or of pathological tissue (cisternal tamponade). The result is specific alteration in the brain stem, depending upon the type of encroachment (herniation or tamponade), as well as the cistern involved. The acuteness of the process is an additional critical consideration stressed.
Special emphasis is accorded vascular lesions (e. g., calcarine infarction) accompanying cisternal encroachment, and the authors introduce the concept of internal occipital vein compression against the tentorial margin, with resultant distal venous hypertension, congestion and diapedesis, and secondary arterial bleeding, producing red infarctions of the occipital lobe. Of particular interest is the discussion of the role of cardiorespiratory disorders, such
Die Schädigung des Hirnstammes bei den raumfordernden Prozessen des Gehirns. AMA Arch NeurPsych. 1958;80(4):466. doi:10.1001/archneurpsyc.1958.02340100066016