. Surgery, its principles and practice . ue to infolding and often papillo- 408 SURGERY OF THE PROSTATE. matous-like proliferation of the lining wall (Fig. 212). The epitheliumlining the acini presents a variety of pictures. One acinus may be linedby a double layer of cells, the internal being a high cylindrical type withthe nucleus near the basal end and an internal layer of rather cuboidalshaped cells. Again, there may be but a single layer of high cylindricalcells. In the culs-de-sac where proliferation is active there may be beneaththe layer of cylindrical cells numerous layers of polygona
. Surgery, its principles and practice . ue to infolding and often papillo- 408 SURGERY OF THE PROSTATE. matous-like proliferation of the lining wall (Fig. 212). The epitheliumlining the acini presents a variety of pictures. One acinus may be linedby a double layer of cells, the internal being a high cylindrical type withthe nucleus near the basal end and an internal layer of rather cuboidalshaped cells. Again, there may be but a single layer of high cylindricalcells. In the culs-de-sac where proliferation is active there may be beneaththe layer of cylindrical cells numerous layers of polygonal shaped often in the same acinus at one point a single layer of cylindriccells may be seen and at other points accumulated heaps of small epithelialcells. The interacinous stroma is composed of fibrous and musculartissue in varying amount. Acini which have undergone cystic degenera-tion are frequently encountered. These acini are usually lined by asingle layer of flattened epithehum, and rarely giAe evidence of a i3rolifera-. LWHh^ < ^l-^2fff. Fig. 212.—This Represents a Picture Commonly Seen in the Glandular Form of acini are for the most part dilated and several have undergone cystic dilatation. Epi-thelial proliferation is active. tive activity. About the periphery of the spheroidal lobules the tissueis, as a rule, condensed, fibrous in character, and contains acini, most ofwhich are compressed and elongated. Fihromuscidar.—The fibromuscular forms seldom reach the largesize attained by the glandular. The largest in our series weighs 25 consistence is much firmer than the glandular, but it never has theinduration which one encounters in the carcinomatous prostate. Onsection it is less succulent and distinctly more homogeneous in appearance,although isolated spheroids are noted, which may be mostly, if not entirely,composed of a fibrous or fibromuscular tissue. The dilated orifices ofthe acini are sometimes seen and occasionally small
Size: 2069px × 1208px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectg, booksubjectsurgery
