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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![bio for fraf>;rncnts of cartilage to become detached from the primary growth and appear in the secondary tumors, shotdd metastasis occur. 4. Osteoma.—Tlie most important tumors containing bone are mixed tumors that an; significant chieHy because of their other (ionstituents. Small growths consisting of bone alone, either in its compact or its spongy form, occur in the lung, walls of the air- passages, and, rarely, in other situations (Fig. 315). Where bony Fi(i. :;io. Developing osteoma of the arachnoid. (Zanda.) A, dura mater; B, as yet non-calcified osteoid tissue ; G, bloodvessel. new formations spring from pre-existent bone—r. r/., from parts of the skeleton—they are usually the result of some inflammatory proc- ess, and are not to be grouped among the tumors. In mixed tumors bone is frequently associated with fibrous tissue, myxoma, sarcoma, and chondroma. The structure of the bone in tumors presents slight departures from the normal type, just as that of cartilage in chondromata is somewhat atypical. The lacunse are apt to vary in size, shaj)e, and distribution more than in normal bone, and the system of canaliculi is less perfectly developed. 5. Myxoma.—The mucous tissue of myxomata has its normal prototype in the Whartonian jelly of the umbilical cord. In its purest form it consists of stellate or s])indle-shape(l cells, with long fibrous processes that lie in a clear, soft, gelatinous, intercellular sub- 23](https://iiif.wellcomecollection.org/image/b21223841_0349.jp2/full/800%2C/0/default.jpg)
