. The Journal of nervous and mental disease. paces larger than hitherto, butlarge spaces have formed through almost the whole vertical extentof the putamen, in consequence of the breaking down, or tearing, ofthe neuroglia, and of the opening of the spaces thus formed into thelarge ones around the blood vessels. Around a vessel at the base ofthe putamen there is a large ma<< of lymphocytes, but within theputamen it-elf lymphocytes do not appear in considerable numbers LESION IN THE PUT AMEN 105 which might indicate a special affection of this region by the vessels within the
. The Journal of nervous and mental disease. paces larger than hitherto, butlarge spaces have formed through almost the whole vertical extentof the putamen, in consequence of the breaking down, or tearing, ofthe neuroglia, and of the opening of the spaces thus formed into thelarge ones around the blood vessels. Around a vessel at the base ofthe putamen there is a large ma<< of lymphocytes, but within theputamen it-elf lymphocytes do not appear in considerable numbers LESION IN THE PUT AMEN 105 which might indicate a special affection of this region by the vessels within the affected area are not conspicuously diseased,although some lacunes are observed around them; some vesselsappear even rather thin-walled. The neuroglia is very rich in nuclei,which, retaining some of the stain after differentiation by the methodof Pal, give to the ground substance in the Weigert sections a gran-ular appearance under a lower power; by this appearance the pres-ence of the disease in the pntamen may often be detected before the. Fig. 6. About same level as in Fig. 6. enlarged,in lenticular ansa. Cavitation. Abundant fibers loss of myelinated fibers becomes clear. Another indication of themorbid process in Weigert sections is the presence of pigment gran-ules. This pigment is not observed in the left putamen. Before the appearance of the ansa, as in Fig. 6, there are still anumber of fiber bundles in the putamen which contain the paler,finer fibers as well as darker ones; but after this the degeneration ofthe fibers becomes more extensive and more intense, the finer fibersseeming to disappear first, for what is left of a bundle is always com-posed of thicker, darkly-stained fibers. io6 L. NEWMARK
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectpsychologypathologic
