. The elements of pathological histology with special reference to practical methods . with processes ; b, Atrophic ganglion cells ; c, Atrophic ganglioncells with pigment; d, Corpus aniylaceum ; c, Nuclei of neuroglia cells. forming in them), whilst finally they dissolve altogether. The ganglioncells may also, however, undergo fatty degeneration, and when oncedead, may even calcify. In the nerves it is the medullary sheath which is most breaks up into drops of variable size and of very numerous andstrangely outlined forms, these drops being still at the outset com-posed of myelin
. The elements of pathological histology with special reference to practical methods . with processes ; b, Atrophic ganglion cells ; c, Atrophic ganglioncells with pigment; d, Corpus aniylaceum ; c, Nuclei of neuroglia cells. forming in them), whilst finally they dissolve altogether. The ganglioncells may also, however, undergo fatty degeneration, and when oncedead, may even calcify. In the nerves it is the medullary sheath which is most breaks up into drops of variable size and of very numerous andstrangely outlined forms, these drops being still at the outset com-posed of myelin, though later, as they become smaller and smaller, it isimpossible to distinguish them from fat-droplets. The axis cylindersmay remain unaltered for a longer time, or may swell up or becomevaricose. Within the limits of the softened portions there next 884 THE CENTRAL NERVOUS SYSTEM follows a transudation of fluid from the still pervious blood-vessels,and emigration of white corpuscles (Fig. 161, c). By the formerthe neuroglia fibres and the processes of the cells of Deiters are d. f Fig. 161.—Red amd Yellow Softening of the Cortex of the Temporal Lobe,after embolism of the Arteria fossaj Sylvii. x 535. (Haeniatoxylin and eosiii.) A, Cerebialcortex with commencing softening ; B, Accumulation of granule cells and red corpuscles ;C. Extreme softeninj; and liquefaction of the substance of the brain ; o, Ganglion cells ;h. Neuroglia; c, Mononuclear leucocytes; d, Leucocytes filled with myelin and fat-droplets (granule cells); e, Extravasated red corpuscles ; /, Blood-vessel with accunuila-tion of granule cells in its adventitia ; g, Neuroglia fibi*es not yet liquefied. thrust asunder, or partially destroyed, whilst the emigrated leuco-cytes become charged with the fatty detritus resulting from de-generation of the ganglion-cells and nerve-fibres, being therebyexpanded into large granule corpuscles (d), and transport it intothe neighbouring perivascular lymph-spaces (/). At this
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectpatholo, bookyear1895
