Brain surgery . lIB. 106 BRAIN SURGERY. tive tissue appears, hollowing out the apex of theconvolution, and in many places at its junction with the gray matter fashions the latter into curious littleislands or tubular plugs (Fig. 34, Z, Z, Z) often moreor less surrounded by connective tissue. The braintissue of the convolution B shows a tendency to be-come converted into neuroglia tissue, especially in theregions Z, Z, Z, where it consists entirely of neurogliacells with their branching and tangled processes. Inthe other portions of the convolution there are quite afew degenerated ganglion cell
Brain surgery . lIB. 106 BRAIN SURGERY. tive tissue appears, hollowing out the apex of theconvolution, and in many places at its junction with the gray matter fashions the latter into curious littleislands or tubular plugs (Fig. 34, Z, Z, Z) often moreor less surrounded by connective tissue. The braintissue of the convolution B shows a tendency to be-come converted into neuroglia tissue, especially in theregions Z, Z, Z, where it consists entirely of neurogliacells with their branching and tangled processes. Inthe other portions of the convolution there are quite afew degenerated ganglion cells scattered about amongthe proliferating or much-increased neuroglial ele-ments, so that the rest of the entire convolution is ex-tensively damaged, and the gray matter cannot bedistinguished from the white matter except by thepresence of the degenerated ganglion cells. In the convolution C there is a still greater pro-duction of connective tissue and a corresponding dim-inution in the substance of the cortex. At (u)
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