Buffalo medical and surgical journal . Fig. 1. A cross-section of the intra-cerebral oculo-motorius showsplainly the changes just mentioned. The blood-vessels presented important and striking changes. Thecapillaries, smaller as well as larger arteries, were found in a state TRANSLA TIONS. of engorgement. So marked was this vascularization, that the prepa-rations gave the appearance of a vascular new-growth. On theother hand, the veins in the floor of the fourth ventricle were found inan empty condition, their walls collapsed. The hyperemia waspretty regular, and could be noticed in every prepa
Buffalo medical and surgical journal . Fig. 1. A cross-section of the intra-cerebral oculo-motorius showsplainly the changes just mentioned. The blood-vessels presented important and striking changes. Thecapillaries, smaller as well as larger arteries, were found in a state TRANSLA TIONS. of engorgement. So marked was this vascularization, that the prepa-rations gave the appearance of a vascular new-growth. On theother hand, the veins in the floor of the fourth ventricle were found inan empty condition, their walls collapsed. The hyperemia waspretty regular, and could be noticed in every preparation of thewhole series. The next important change was a remarkable diapedesis of theblood-corpuscles, due, no doubt, to finer changes in the walls of theblood-vessels. This change is now generally accepted as due to thediphtheritic virus causing slight inflammation of the vessel Fig. 2. A cross-section through the pons near the trigeminusshows the condition of a blood-vessel. One sees along the entirelength of the blood-vessel the diapedesis of the blood corpuscles, andsome, further in the tissues of the pons. This diapedesis was noticeable in nearly every section, and wasmost striking in those sections stained with nigrosine. In these sec-tions, the blood corpuscles, stained yellow by the hardening fluid—bichromate of potassium—refused to accept the nigrosine, thus show-ing a marked contrast to the vessel-walls, stained blue by the nigrosine. The examination showed, further, a large number of small hem-orrhages which had taken place in the pons. The results of thediapedeses were accumulations of blood corpuscles in the perivascularspaces. 320 TRANSLATIONS. Fig. 2 shows the diapedesis and the accumulation of blood cor-pusclesin the perivascular spaces. The greater hemorrhages were, in part, visible to the naked eye,especially near the intra-pontile course
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Keywords: ., bookcentury1800, booksubjectgeneralsurgery, booksubjectmedicine
