Identifier: breastitsanomali00deav (find matches)
Title: The breast: its anomalies, its diseases, and their treatment
Year: 1917 (1910s)
Authors: Deaver, John B. (John Blair), 1855-1931
Subjects: Breast Breast X-rays Breast Diseases Breast Neoplasms Radiotherapy
Publisher: Philadelphia, P. Blakiston's Son & Co
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons

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becomes essential, when the former will show a cellular, the THE NON-INDIGENOTJS TUMORS OF THE MAMMARY GLAND 451 latter a fibrillar or myxomatous tissue growing about and pressing into the ducts. Thesimilarity of arrangement is sufficient to indicate that the sarcoma develops from thefibroma, and not independently of it, and to justify the terms peri-caiialicular sarcomaand intra-canalicular sarcoma. As usually conceived, sarcoma is a largely or purely cellular tumor but in these in-digenous sarcomas of the breast, there are more or less conspicuous glandular elementsin the form of more or less altered tubules. Must they be taken into serious accountwhen the tumor becomes sarcoma? Is it wise to introduce descriptive terms such asadeno-sarcoma to apply to them? It seems as though this might be regarded as a super-erogation, for if the tumor be described as peri-ductal sarcoma, it ought to be inferredthat it grew among or about the glandular ductules which may be found in its substance.
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Periductal fibroma (cystic). As the sarcoma tissue increases more rapidly than the fibrillar tissue possibly can, thegrowth of the tumor advances more rapidly after the sarcomatous change sets in, and inthe cases that we have studied, it seems as though the rapidly growing cells of the sar-coma soon begin the effacement of the parenchymatous elements by compression and per-haps by starvation until they become relatively few in numbers, fall into obscurity andeventually may disappear. Non-indigenous sarcomas of all varieties—round-cell, spindle-cell, giant-cell—maygrow in the fibro-epithelial tumors, just as in the breast itself. Full particulars inregard to them, and in regard to adeno-sarcoma, cysto-sarcoma, and the sarcomatoustransformations of the benign tumors will be found in the chapter upon Sarcoma of theBreast (q.v.). 2. Carcinoma.—The fibro-epithelial tumors result from activities of growth shared 452 THE BREAST by both the ductal and peri-ductal tissues. In the ordinar

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