Practical pathology; a manual for students and practitioners . s are small cyst-like cavities lined with epithelium,which is heaped up at one part of the circumference around one cellof special size, the ovum. The origin of the Graafian follicles is ofsufticient importance, as bearing on the development of ovarian DISEASES OF THE OVARIES 657 tumours, to warrant a brief reference to the conflicting theories—thoseof Waldeyer and of Foulis. Both observers are agreed that the ovumwas originally an epithelial cell on the surface of the ovary, whichbecame embedded in the stroma of the organ. Waldeye
Practical pathology; a manual for students and practitioners . s are small cyst-like cavities lined with epithelium,which is heaped up at one part of the circumference around one cellof special size, the ovum. The origin of the Graafian follicles is ofsufticient importance, as bearing on the development of ovarian DISEASES OF THE OVARIES 657 tumours, to warrant a brief reference to the conflicting theories—thoseof Waldeyer and of Foulis. Both observers are agreed that the ovumwas originally an epithelial cell on the surface of the ovary, whichbecame embedded in the stroma of the organ. Waldeyer holds thatthe epithelial cells of the Graafian follicle were also at one time cells ofthe surface, while Foulis regards them as being derived from theconnective tissue of the ovary as a result of the irritation set up by thepresence of the ovum; as being, in fact, granulation cells which havebecome epithelial in character. 423. Tubercle a?id cancer occur in the ovary—usually secondarily,sometimes primarily. Cancer, when secondary, affects both 0 ..k:<-- Fig. 217.—Sarcomatous degeneration of ovarian cystic tiimuur,showing infiltration of the stroma and filling up of small cysts withround cells. Stained with logwood. ( x 50.) When primary, one alone may be affected, but the tumour rarelyattains any considerable size. What is spoken of as malignant ovariantumour is not cancer of the ovary, as will be explained presently. 424. hijlanunation and cirrhosis 0/ the ovary.—The ovaries may befound in any stage of inflammation, from the initial congestive stageto that of the formation of new fibrous tissue upon the one hand, orsuppuration upon the other. Abscess formation—a rare occurrence—may follow tuberculous, gonorrhoeal, or septic infection, and possibly 658 THE ORGANS OF GENERATION IN THE FEMALE Other forms of inflammation. In such cases the ovary becomes adherent—in the pelvis or to the abdominal wall—and the relationship of partsbecomes greatly alter
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