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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1903 Excerpt: ... with blood. Some of the vessels were surrounded by many layers of spindle cells, arranged circularly, and sometimes partly hyaline. In tumors of this class it is not uncommon to find blood vessels surrounded by a thick layer of concentrically arranged spindle cells, which may undergo hyaline degeneration and result in thick hvaline walls, such as are shown in fig. 28. The connective tissue was relatively abundant in this growth, especially around the vessels. The mature fibrous tissue found in tumors of this class must be considered as an essential constituent, as it is in ordinary sarcomata and most other tumors. The exact histogenesis of the connective tissue in these tumors is hard to demonstrate, but it seems reasonable to conclude that it is of the same origin as the tumor cells, and its proliferation is due to the same causes. Examination of the boundary between the tumor and the brain tissue showed what appeared to be remnants of the pia mater incorporated with the tumor, but still recognizable by the fully formed blood vessels and mature connective tissue. The brain substance showed a border of degenerated tissue, but at a slight depth no alteration due to the presence of the tumor was perceptible. General microscopic examination of the brain has not yet been made, and the histological study of the other organs was deemed unimportant. CASE 1178. SPINDLE-CELLED ENDOTHELIAL SARCOMA OF THE DURA MATER, PENETRATING THE BRAIN. J. E.; aged 68; colored; widower; laborer; late soldier; mental disease, senile dementia; duration, three and one-half years. The Eatient was admitted to the Western Branch. National Home for isabled Volunteer Soldiers. October 2. 1S93, with left hemiplegia, convulsions, and was almost helpless. He was admitted to the insane ward A...
