Gynecology . ls which vary greatly in sizerand are infiltrated with a few round cells. A few strands of stroma are seen thickly infiltrated withround cells. Between these two tissues there is no basement-membrane, and the typical basal layerof cells found in stratified squamous epithelium is missing. variously estimated that from to 98 per cent, of women with cancer of thecervix have had children, and that the greater majority have been multiparous. NEW GROWTHS 291 It has been a common idea that the carcinomatous process is especiallyfavored by the scar-tissue that forms in an old lacerat
Gynecology . ls which vary greatly in sizerand are infiltrated with a few round cells. A few strands of stroma are seen thickly infiltrated withround cells. Between these two tissues there is no basement-membrane, and the typical basal layerof cells found in stratified squamous epithelium is missing. variously estimated that from to 98 per cent, of women with cancer of thecervix have had children, and that the greater majority have been multiparous. NEW GROWTHS 291 It has been a common idea that the carcinomatous process is especiallyfavored by the scar-tissue that forms in an old laceration. One theory sug-gests that after a cervical tear epithelial cells become included in the submucoustissue, and that toward the time of the climacteric, when the stroma begins tolose its power of resistance, the cell inclusion has an opportunity to grow theory is that the lesion of the external os deprives the cervical mucousmembrane of an important means of protection. Not only is the delicate. ,t:vfv: If .-#« fj,^ %. •* ?<*#** % Vs. li»gr Fig. 100.—Squamous Carcinoma of the power. On the left of the picture is seen a trabeculum of the stroma of the cervix. The restof the tissue consists of epithelial cells which show no definite formation, which have lost the layerof basal cells seen in normal stratified squamous epithelium, and which individually are large, irregularin shape, and have nuclei that vary greatly in size. Mitotic figures are seen in various stages, especi-ally near the top. membrane exposed directly to continual injury, but the mucus, which in theintact cervix acts as a kind of protective plug, now pours directly into thevagina. Whatever theory is right, there is no doubt that cervices which show anectropion of the cervical mucous membrane, or an erosion on the external lips,have a special predisposition to cancer. The most common cause for ectropionand erosion is laceration of the cervix. We do find, however, erosions i
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