. The diagnosis of diseases of women . e the tumor. Aboutone-third are cystic. Sarcomatous degeneration of dermoid cystsis described. Metastasis occurs later in sarcoma than in carcinoma DIAGNOSIS OF DISEASES OF THE OVARY 449 of the ovary. INIetastatic growths are found in order of frequencyin the peritoneum, omentum, wall of the stomach, pleura, lungs,uterus, liver, diaphragm, retrovaginal connective tissue, mediasti-num, tubes, intestines, and kidney (Temesvary). A myxomatous degeneration of sarcomatous tissue is occasionallyobserved. ENDOTHELIOMA OF THE OVARY. Marchand and Leopold first obs
. The diagnosis of diseases of women . e the tumor. Aboutone-third are cystic. Sarcomatous degeneration of dermoid cystsis described. Metastasis occurs later in sarcoma than in carcinoma DIAGNOSIS OF DISEASES OF THE OVARY 449 of the ovary. INIetastatic growths are found in order of frequencyin the peritoneum, omentum, wall of the stomach, pleura, lungs,uterus, liver, diaphragm, retrovaginal connective tissue, mediasti-num, tubes, intestines, and kidney (Temesvary). A myxomatous degeneration of sarcomatous tissue is occasionallyobserved. ENDOTHELIOMA OF THE OVARY. Marchand and Leopold first observed malignant new-formationsof the ovary arising from the endothelium of bloodvessels. Theyare also known to arise from the lymph vessels. Few have beenrecognized, but doubtless many pass for carcinoma and sarcoma. PAROVARIAN CYSTS. The parovarium consists of a series of tubules lying between thelayers of the mesosalpinx. When the mesosalpinx is stretched andheld between the eye and the light, the tubules are seen as narrow Fig. 184. Parovarian cyst. Between the tube and ovary is a thin-walled, transparent cyst the sizeof an almond. It lies between the layers of the broad ligament, and was developed from aparovarian tubule. cords running in parallel lines from the hilum of the ovary to alongitudinal tubule lying parallel to the tube and immediatelybeneath it (Gartners duct). The tubules are lined with ciliatedepithelium. The parovarium is homologous with the vasa affer-entia and epididymis of the testis. It is composed of the persistentexcretory ducts of the Wolffian body. As a rule, there are twelve tubules. The tubule running parallel 29 450 SPECIAL DIAGNOSIS to the Fallopian tube and at right angles to the parovarian tubulesis the duct of Gartner, which in exceptional cases may be traced tothe vagina. Cysts arising from the parovarium, the so-called parovarian cysts,are of common occurrence. As the cyst develops the layers of themesosalpinx are unfolded, the tube is crowde
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