Histology; normal and morbid.
- Dunham, Edward K. (Edward Kellogg), 1860-1922
- Date:
- 1898
Licence: Public Domain Mark
Credit: Histology; normal and morbid. Source: Wellcome Collection.
Provider: This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.
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![striated muscle-fibres, arranged in irregular, interwoven bands, with a little vascular fibrous tissue among them. In other cases the muscular fibres are sparsely distributed through the growth, and can often be found only after a prolonged search. In these cases the tissue iu wliich the muscle is situated is usually some variety of sarcoma, when the whole tumor is known as a rhabdomyosarcoma (Figs. e336, 337, and 338). Such mixed tumors are most frequently found in the genito-urinary tract, especially in the kidney, and may attain very large size. They are apt to occur in the early years of Fig. 338. Isolated ceUs from a rhabdoniyoma of the heart. (Ccsaris-Demel.) life, and are probably due to developmental anomalies. The sarcom- atous element, which is usually predominant, gives them a highly malignant character. m. THE ANGIOMATOUS TUMORS. Reference has already been made to the manner in which the bloodvessels of a part may proliferate under the influence of the inflammatory process, and also to the fiict that when tumors develop the bloodvessels proliferate in a similar way to form new vascular areas within the tumor, from which the latter derives its nourishment. These instances of proliferation may be regarded as the natural respon.sc on the part of the vascular system to the de- mand thrown upon it by the formation of new tissues. In a general way, they are limited to the needs of the tissues which they supply. A vascular ]>roliferation may, however, take place irrespective of](https://iiif.wellcomecollection.org/image/b21223841_0369.jp2/full/800%2C/0/default.jpg)
