Clinical lectures on the principles and practice of medicine . ed through-out the brain, consisted of a vascular stroma, and a thick creamy juice. A drop ofthe latter contained numerous cancer cells in all stages of development, as repre-sented Pig. 277, p. 215. The stroma of the small masses consisted of a plexus ofvessels of various sizes, crossing and inosculating with one another, many formingloops which were enlarged and crowded with blood corpuscles as in Pig. 151. In the CAZSTCEE OF THE BRAIN. 423 larger masses the vessels had undergone development, by pushing out from theirsides prolon
Clinical lectures on the principles and practice of medicine . ed through-out the brain, consisted of a vascular stroma, and a thick creamy juice. A drop ofthe latter contained numerous cancer cells in all stages of development, as repre-sented Pig. 277, p. 215. The stroma of the small masses consisted of a plexus ofvessels of various sizes, crossing and inosculating with one another, many formingloops which were enlarged and crowded with blood corpuscles as in Pig. 151. In the CAZSTCEE OF THE BRAIN. 423 larger masses the vessels had undergone development, by pushing out from theirsides prolongations, which, subsequently uniting, formed a plexus (as seen in ). During this process, however, another change had occurred, viz., an in-vestment of these prolongations, which often assumed the form of acini in a gland,with a distinct membrane, in the interior of which was a vascular loop. It re-sulted that whilst some part of these masses contained a vascular plexus, withnumerous cancer cells in a mesh-work, in others it exhibited a structure, now. Fig. 412. Fier. 413. villous, and now approaching towards that of a gland (Figs. 392, 393). This wasevidently the Cancer Stromata, so well described by Rokitanski, in some forms ofencephaloma. The small cancerous nodule in the spinal cord presented the samestructure as those in the brain. For the most part the nervous substance surround-ing these masses was quite healthy; but here and there, in their immediate neighbor-hood, it contained a few granule cells. The cancer of the lungs and bones presentedthe usual structure of encephaloma in those organs. Commentary.—The occurrence of cancer in the brain is exceedinglyrare; and the form of it above described was seen by me for the firsttime, and examined with the greatest care. Its structure histologicallywas very interesting, and contrasted in some remarkable particularswith another well-observed case recorded by Dr. Redfern of Aberdeen,*in which the stroma consisted wholly
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectmedicine, bookyear187
