A treatise on diseases of the bones / By Thomas M. Markoe.

  • Thomas M. Markoe
Date:
1872
Catalogue details

Licence: Public Domain Mark

Credit: A treatise on diseases of the bones / By Thomas M. Markoe. Source: Wellcome Collection.

Provider: This material has been provided by the Harvey Cushing/John Hay Whitney Medical Library at Yale University, through the Medical Heritage Library. The original may be consulted at the Harvey Cushing/John Hay Whitney Medical Library at Yale University.

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    the homologous bone-diseases, giving us the tumors composed of the elements of cartilage, of bone, of the fibrous tissue of the periosteum, and of the medulla, all of which we might ex- pect to belong, and all of which we find to belong, to the class of benign affections. On this point, which, after all, is the most interesting and important one connected with the study of the disease, the testimony of the best observers is unhesitating and uniform. Mr. Paget's whole chapter on Myeloid Tumors is devoted to show that, as a general rule, they are benign in their nature, and that, if thoroughly removed, the likelihood of their return is extremely small. ISTelaton says: The ' tumeurs a myelo- plaxes' (especially those of the typical variety) deserve, in virtue of their habitual localization, and almost to the same degree as the lipomas, the fibromas, and the enchondromas, to be classed among the benign tumors. Yirchow, while he is not willing to acknowledge the myeloid as generally benignant, gives no case of his own in which well-marked myeloid disease has been accompanied with generalization, and says in discuss- ing the value of the diff'erent anatomical elements of sarcoma: The size of the cells is not without im]3ortance. All the sarcomata with small cells are more dangerous than those with large cells. The soft sarcomata with the gigantic multinuclear cells give even a prognostic comparatively very favorable. If to this be added his avowal of the almost uniform benignity of the myeloid epulis, and of the tumors of the jaws in general, we may accept him as an unwilling but a strong witness to the general pathological law that myeloid tumors are essentially benignant. Billroth says : Central osteo-sarcomata (myeloid tumors) are usually soHtary, very rarely generally infectious. Cornil and Eanvier say: Among the myeloid sarcomata those which resemble absolutely the marrow of the bones are more benign than those in which we find parts representing the tis- sue of the encephaloid or fasciculated sarcoma. It is essential to note these complications and their value in prognosis, which will explain why, for example, the tumors, which some authors still call ' tumeur a myeloplaxes,' may not be always regarded as benign. The occasional mahgnity of myeloid growths has been
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