So many excellent articles on all phases of this subject have appeared during the past few years that it seems superfluous for us to consider it exhaustively at this time, especially as little has been added to our knowledge since their publication. We will, therefore, take up only the principal points in the anatomy and pathology of the Gasserian ganglion, the etiology and symptomatology of tic douloureux, the history of the development of the operation for excision of the ganglion, and the modern methods of performing the operation itself.
The Gasserian ganglion lies in a depression at the apex of the petrous portion of the temporal bone. It is a small crescentic mass of nerve substance, which appears, after careful dissection, simply as an expansion on the sensory root of the fifth nerve, which enters it at its postero-superior border. Its two chief surfaces are the antero-external and postero-internal;
MURPHY JB, NEFF JM. EXCISION OF THE GASSERIAN GANGLION. WITH REPORTS OF TEN CASES OPERATED UPON BY THE HARTLEY-KRAUSE METHOD. JAMA. 1902;XXXIX(15):896–901. doi:10.1001/jama.1902.52480410020001e
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