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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its stroma of growing tissue abuts against a thinnedzone of atrophic surrounding connective tissue from which it readily escapes when THE NON-INDIGENOUS TUMORS OF THE MAMMARY GLAND 445 incised. Accumulated secretion or exuded lymph sometimes collects in and distendsthe tubules of the parenchyma—cystadeno-fihroma. Closely similar in external appearance to these fibro-adenomas are certain otherfibro-epithelial tumors to which Warren has applied the name peri-dudal fibronias.That there is any essential difference between the fibro-adenoma and the peri-ductalfibroma is improbable, as not a few tumors show the typical appearance of the former incertain areas and of the latter in other areas of their tissue. The chief peculiarities of theperi-ductal fibroma depend upon the fact that the vegetative activity in the peri-ductaltissue outweighs that of the parenchymatous tissue. The result is a tumor in whichthe peri-ductal tissue becomes a striking and important component that justifies the
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Fig. i6i.—Intracanalicular periductal fibroma, showing the typical appearance. name fibroma, though the term is misleading, as the tumor is really fibro-adenoma.Two forms of this fibromatoid condition are described—peri-canalicular peri-ductalfibroma and intra-canalicular peri-ductal fibroma. These are not diiJerent species of tumor,nor is either a different tumor from fibro-adnoma, as is easily proven by an examinationof a series of slides from a large number of tumors, which shows that all three appearancesnot infrequently coexist, and that two commonly coexist in the same tumor. If ourtheory of origin be correct, and the tumor is primarily a lobule of the breast tissuearoused to growth through unknown stimuh, and the separation of the growing lobuletakes place through compression and traction of ducts and connective tissue, it is easy toconceive that the ordinary fibro-adenoma results from uniform growth of both paren- 446 THE BREAST chymatous and peri-ductal tissue; that pure

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