Ovary is one of the main endocrine glands, also the source of female fertility and at the same time the organ with the largest number of histological varieties of malignant tumors. The most frequent among primary neoplasms are epithelial tumors. Secondary tumors of the ovary arise by direct tumor extension from adjacent organs or tissues, by transtubal or transperitoneal route, as well as hemat...

Primary ovarian leiomyoma is a rare tumor, accounting for only 0.5%-1% of benign ovarian neoplasms. About 80 cases have been reported in the literature worldwide to date. Most cases are asymptomatic and usually found incidentally in routine gynecologic workup, during surgery, or at autopsy. Ovarian leiomyoma is diffi cult to be differentiated from other ovarian benign and malignant neoplasms, p...

Ovarian neoplasms are relatively rare in childhood and adolescence; only 5% to 8% of the cases are of sex cord stromal origin. Granulosa cell tumors are a group of estrogen producing sex cord stromal tumors of the ovary. They occur in 95% of the cases in adults, and only about 5% of the cases, which differ in histologic characteristics, are of juvenile type. A 13-year-old girl is reported who p...

Virilising ovarian tumours are a rare cause of hyperandrogenism in women, accounting for less than 5% of all ovarian neoplasms. It occurs most often in - and postmenopausal women. We report a case of a 64 year-old woman with signs of virilisation that had started 3 years before. Blood hormone analysis revealed increased levels of testosterone, and 17-hydroxyprogesterone. The tetracosactin test ...

Steroid cell tumor not otherwise specified (NOS) is a rare subtype of sex cord stromal tumor of the ovary and contributes less than 0.1% of all ovarian neoplasms. The majority of tumors occur in pre-menopausal women (mean age: 43 years), in which 56-77% of patients present with virilization due to excess testosterone. An 80-year-old woman with worsening alopecia and excessive growth of coarse h...

Metastasis of breast cancer to lung, bone and liver is common, but metastasis to ovaries is rare in Korea. A 31-year-old woman diagnosed with breast cancer was referred to our department due to a newly detected adnexal mass via abdomen sonography during regular check-up. Imaging studies revealed solid mass on left ovary and enlarged lymph nodes. She underwent a laparotomy including hysterectomy...

Human B lymphocyte antigens (HBLA) were detected with fluorescent-labeled antibodies on malignant cells of 102 patients with Hodgkin disease and other lymphomas, plasma cell myeloma, and nonlymphoreticular neoplasms including carcinomas of the breast, lung, and ovary, soft tissue sarcomas, and neuroblastoma. HBLA were present in Hodgkin disease and other lymphomas of B cell or histiocyte deriva...

BACKGROUND Excess risks of several second neoplasms following breast cancer have been reported. However, these risks have still to be quantified. PATIENTS AND METHODS We considered 9,729 breast cancer patients registered by the Swiss Cancer Registries of Vaud and Neuchâtel (covering about 786,000 inhabitants) and followed up from 1974 to 1998. RESULTS Overall, 443 second primary neoplasms (...

Chloroethane, bromoethane and ethylene oxide represent a unique set of chemicals that induce endometrial neoplasms in the uterus of B6C3F1 mice following an inhalation route of exposure. The results of the NTP's chronic bioassays with these three compounds resulted in an unusually high incidence of uterine epithelial neoplasms in B6C3F1 mice (chloroethane 86%, bromoethane 56%) and a lower incid...