. The breast: its anomalies, its diseases, and their treatment . Fig. 177.—^Large cell nests with small amount of stroma,such, as appear in encephaloid or soft cancer. 486 THE BREAST and has a dense, though slimy rather than sticky quaUty. The microscope usuallyshows the cell nests degenerating from the periphery toward the center. The peri-ductaltissue is attacked before the inter-lobular tissue. The gelatinous carcinoma was formerlycalled colloid cancer, but it is now universally recognized that there is no true colloidcancer of the breast, and that the name should be abandoned. The cause of
. The breast: its anomalies, its diseases, and their treatment . Fig. 177.—^Large cell nests with small amount of stroma,such, as appear in encephaloid or soft cancer. 486 THE BREAST and has a dense, though slimy rather than sticky quaUty. The microscope usuallyshows the cell nests degenerating from the periphery toward the center. The peri-ductaltissue is attacked before the inter-lobular tissue. The gelatinous carcinoma was formerlycalled colloid cancer, but it is now universally recognized that there is no true colloidcancer of the breast, and that the name should be abandoned. The cause of the mucoid change is not known. It might be ascribed to some localnutritional disturbance did it not occur equally in the secondaries. On this account ithas to be regarded as a specific quality of the Fig. 178.—Adeno-carcinoma of the breast. IV. Squamous-cell Carcinoma.—This form of tumor is only indigenous and properlyregarded as a true tumor of the breast when it arises from the nipple and areola, or fromthe extensions of the squamous epithelium from the surface of the former into the milkducts. It is a very rare tumor of which our pathological series of 575 cases contains but4 or P^r cent. It is so unusual that one is scarcely sufficiently well acquainted withit to recognize it by gross examination. It is apt to be a centrally and superficiallysituated tumor of the breast, but that is not sufficient to enable the diagnosis to be madewithout a microscopic examination. That examination usually at once settles thematter, for the branching and extending squamous epithelium is not easily mistaken. CARCINOMA 487 When the dermal epithelium invades the breast, no mistake is possible for the epithelialpearls with their distinct keratinization cannot be overlooked. One peculiar
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbreast, bookyear1917
