Practical pathology; an introduction to the practical study of morbid anatomy and histology - Brossura
Sinossi
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. 1887 Excerpt: ... are evidently in an active state of proliferation. Under the high power the details of the histological structure may be made out. The matrix in simple adenoma is composed solely of connective tissue, but it is very common to find the inter-glandular tissue more or less completely cellular. If the glandular structures are surrounded by a matrix of spindle-shaped cells, then the tumour is called adenoid GLIOMA, PSAMMOMA, AND PAPILLOMA. 133 sarcoma. The tubes or acini are seen to be separated from the surrounding fibrous or cellular material by a layer of flattened nucleated cells, the surface of which is lined with a layer of columnar or cubical epithelium. Very often the glandular spaces of the adenoma dilate so as to form cysts, and when this occurs it is not at all uncommon to find masses of tumour tissue projecting into the cavity so formed intra-cystic growth). A large number of the polypi, which form on the mucous membranes, are examples of the adenomata, and in their structure they resemble very closely the glandular tissue of the part in which they grow. 10. Glioma is composed of tissue resembling neuroglia, and is met with in connection with the central nervous system, and sometimes in the retina. The tumours should be carefully hardened in the same way as nervous tissue. Under the microscope the growth is seen to consist of reticulated connective tissue, closely resembling that seen on the surfaces of the ventricles of the brain: it differs, however, in being more cellular than normal neuroglia, the cells being large, oval, and nucleated. Here and there areas of extravasated blood may be observed. 11. Psammoma (Angiolithic sarcoma of Cornil et Ranvier) is a little tumour composed of soft cellular connective tissue, in which are embedded little mas...
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