The science and art of surgery : being a treatise on surgical injuries, diseases, and operations . rupture before having reached more than a verysmall size—not larger than a pea or a nut. It is seldom that more than one of the arteries of the brain sufferaneurismal dilatation. In the Museum of the College of Surgeons,however, are the preparations (Nos. 1687 and 1688) of aneurismal dila-tation of both internal carotid arteries, resembling two bulbs aboutfive-eighths of an inch in diameter, filling up the hollow on each side thesella Turcica, which were evidently dilatations of the carotid arter


The science and art of surgery : being a treatise on surgical injuries, diseases, and operations . rupture before having reached more than a verysmall size—not larger than a pea or a nut. It is seldom that more than one of the arteries of the brain sufferaneurismal dilatation. In the Museum of the College of Surgeons,however, are the preparations (Nos. 1687 and 1688) of aneurismal dila-tation of both internal carotid arteries, resembling two bulbs aboutfive-eighths of an inch in diameter, filling up the hollow on each side thesella Turcica, which were evidently dilatations of the carotid arteries ;and from their being filled with laminae of coagulated blood, there couldbe little doubt of their being aneurisms of these arteries. The one onthe left side was the largest; that on the right side communicated withthe cavity of the artery, which was not the case with the other. A case occurred in University College Hospital some years ago, underthe care of A. T. Thomson, in which a somewhat similar condition man, forty-nine years of age, had fallen on his head some months be-. Fg. 3S2.—Fusiform Aneurism of BasilarArtery laid open. SYMPTOMS OF INTRACRANIAL ANEURISM. 109 fore admission into the Hospital. Since then he had been garrulous,silly, and very irritable—becoming readily intoxicated. He suddenlybecame insensible and comatose, with vomiting and laborious breathing;he could close both eyes, but the right pupil was dilated ; the left sidewas paralysed. He wsis treated for apoplexy, and became slightly bet-ter, but died in ten days from the first attack. On examination, ananeurism a little larger than a hazel-nut was found on the trunk of theright carotid, where it gave off the middle cerebral artery, and anothersmall one on the course of that arter3\ There was a globular aneurismon the corresponding artery of the opposite side; the basilar artery wasthickened, white, and opaque, as were also the other larger arteries ofthe brain ; there was softening of


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