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December 1992

The Brain Stem Viewed In Situ From Above

Author Affiliations

Division of Neurology St Elizabeth's Hospital 736 Cambridge St Boston, MA 02135
Massachusetts General Hospital Fruit St Boston, MA 02114

Arch Neurol. 1992;49(12):1230. doi:10.1001/archneur.1992.00530360028011

To the Editor.  —The main point of our article published in the November 1991 issue of the Archives was demonstrated in Fig 51(p1169) showing the brain stem viewed in situ from above. The left oculomotor nerve origin, on the side of a large hemorrhage, was displaced medially causing the nerve to buckle over the clivus. The right oculomotor nerve was slack and had a small groove from the posterior communicating artery. Figure 5, as published in the original article,1 was apparently too small for many readers to appreciate the pathoanatomy, and it is reprinted (Figure, see bottom of p 1231) in larger size.

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