CASE REPORTS
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[MALIGNANT TUMORS IN OVARIAN MATURE CYSTIC TERATOMAS INTRAOPERATIVE DIAGNOSTIC BASIS].

Georgian Medical News 2016 November
Extremely rare ovarian primary tumors formed in a mature cystic teratomaare described in the literature. This research work studies the frequency of malignant mature cystic teratoma, as well as their clinical and morphological features and necessity of intraoperative histological examination of all teratomas. Cases histories of 56 patients, suffering from ovarian mature cystic teratomahave been studied in MC Shengavit in the period of 2003 - 2015. Among them 4 patients with the somatic malignancies were identified. Morphological methods, which are considered to be "gold standard" of tumor investigation, were used in staining the slides with hematoxylin - eosin. According to the literature the secondary malignant transformation rarely occurs and is typical in postmenopausal women, with a frequency of 0.17-3%. According to the results of our study, malignant tumors in mature cystic teratomas were observed in 4 (7,14%) from the total number of mature cystic teratomas (n=56). There was not revealed a correlation between the duration of the complaints, age of the patients, sizes of ovarian mature teratoma and malignization degree. Thus, the greatest difficulties of clinical diagnosis of malignant tumors in the ovarian mature cystic teratomas were in the early stage of the disease, because of a variety of clinical manifestations, not pathognomonic for malignization. All mentioned symptoms may be observed in the patients with usual mature cystic teratomas. Тhis cases confirm the necessity to take tissue samples from the other ovary for intraoperative histopathological evaluation in each case of mature cystic teratomas. It is necessary to examine a large number of tumor sites, to prevent errors in the assessment of the maturity degree of teratoma.

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