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881 records · Page 49Linked to original sources
PubMed1983

[Morphological and endocrinological study of theca cell tumor during pregnancy].

With a theca cell tumor of the ovary associated with pregnancy, an extremely rare occurrence in a 30 years old primigravida at 15 weeks of gestation, morphological and endocrinological studies were performed. The tumor was composed of cell-nests scattered among a fibromatous structure. The round or polygonal cells are rich in eosinophilic cytoplasm, resembling theca internal cells. The histochemical activity of 3 beta-HSD and G-6-PDH was demonstrated in these cells. They had the ultrastructures characteristic for steroid-producing cells, in some of which immature and mature Reinke crystalloid-like structures were identified. Mature ones were infrequently observed in contrast to the numerous immature ones. It is considered that a few cells might have differentiated into Leydig cells in the course of differentiation into thecomatous cells from ovarian stroma or mesenchyme. Judged from the rapid enlargement in early pregnancy, this tumor may depend on hCG. Serum estradiol was decreased immediately after removal of the tumor even at 15 weeks of gestation. Histochemical, ultrastructural and endocrinological findings suggest that the tumor was secreting mainly estradiol at the time of the operation.

3-Hydroxysteroid Dehydrogenases↗
PubMed1983

[Virilizing luteoma of pregnancy. Relation to polycystic ovaries].

Luteoma of pregnancy is a benign uncommon ovarian tumor which develops during pregnancy and disappears completely after delivery. It can virilize the mother and female foetus. The coexistence of this ovarian tumor with polycystic ovarian disease is well known but no causal relation has been demonstrated. In polycystic ovarian disease, luteinization is the result of persistent stimulation of the ovary by elevated levels of LH, whereas HCG has been suggested as a factor in the pathogenesis of luteoma. Though not a requisite factor, ovarian polycystic disease promotes the development of luteoma. However, the role of other hormonal and biochemical factors is still unknown.

Adult↗
PubMed1984

Tumor and serum CEA content in gynecologic neoplasms.

The relationship of serum carcinoembryonic antigen (CEA) levels to tumor tissue CEA content, and tumor weight in patients with different genital tract neoplasms was studied. Two-step extraction of tumor tissues was performed using perchloric acid and 3 M KCl. Sera and tissue extracts were assayed for CEA content by double-antibody radioimmunoassay. No clear correlation was found between serum CEA and tumor CEA contents, tumor weight, and histological structure. Our results showed, however, that high CEA concentrations in tumor tissue (10 micrograms/g or higher) were accompanied by elevated values in plasma.

Brenner Tumor↗
PubMed1984

Juvenile-type granulosa theca cell tumour producing precocious pseudopuberty. A case report.

The juvenile-type of granulosa theca cell tumour in a young girl is reported. The child presented with pain, vaginal bleeding, distension of the abdomen and enlarged breasts and exhibited pubic and axillary hair, i.e. signs of oestrogenic and androgenic effects and overproduction of luteinizing hormone--an unusual phenomenon. Discussion includes the differences between the juvenile and adult types of this tumour. Salpingo-oophorectomy of the affected side is recommended in such cases. A recurrence many years after surgery has been reported, so long-term follow-up is envisaged in this case.

Child, Preschool↗
PubMed1984

Establishment and characterization of an estrogen-producing human ovarian granulosa tumor cell line.

Cells designated HTOG and HTOT were established by long-term culture from a human ovarian granulosa cell and a theca cell tumor, respectively. The HTOG line grew well forming colonies and multilayered rapidly without contact inhibition; serial passages of HTOG were performed over 100 times successively within 25 months. HTOG were spindle cells, polygonal or spherical in shape, revealed neoplastic and pleomorphic features, and produced estrone (E1) and 17 beta-estradiol (E2). The chromosome number varied considerably and showed hyperploidy; the modal chromosome number was in the hypertriploid-tetraploid range. When HTOG cells were heterotransplanted into the subcutis of BALB/c nude mice, they produced a sarcomatous diffuse type of granulosa cell tumors. In contrast, HTOT cells grew slowly while forming monolayers and underwent five successive passages in about 100 days, but a theca cell tumor line could not be established. HTOT cells were fibroblastic in shape and also produced E1 and E2. The majority of the cells showed diploidy and karyologic normality.

Animals↗
PubMed1984

[Fibrothecoma of the ovary with typical Meigs syndrome and tumorous cachexia].

A case of a big fibrothecoma of the right ovary is reported. A women 49 years of age was admitted in a bad general situation with anemia, ascites, hydrothorax and weight loss. On operation the tumor looked like malignant one. Both the ovaries were excised. The pathological examination showed a fibrothecoma of the ovary with no signs of malignancy. The postoperative period was uneventfull and the patient is in a good condition 7 months after operation.

Cachexia↗
PubMed1984

Luteoma of pregnancy.

Seven patients are presented, 6 with luteomas of pregnancy and 1 with hyperreactio luteinalis. The mean age as 31,7 years and 4 patients had bilateral tumours. Only 1 of these patients was treated with bilateral salpingo-oophorectomy, while 1 patient with a unilateral tumour had only a wedge biopsy. In all instances the remaining 'tumour' regressed, supporting the thesis that luteomas represent an unusual response of ovarian stromal cells to the altered hormonal levels of pregnancy. About 30% of patients with luteomas of pregnancy will be virilized, and about 50% of female infants from these patients will be masculinized. About 112 patients with luteomas of pregnancy have been reported in the literature. the differential diagnosis includes theca lutein cysts, the oedematous ovary syndrome and luteinized forms of ovarian stromal tumours.

Adult↗
PubMed1994

Current management of complete and partial molar pregnancy.

Molar pregnancy is composed of two separate entities, partial (PHM) and complete (CHM), which are distinct in terms of epidemiology, genetics, histopathology, clinical presentation and risk of persistent gestational trophoblastic tumor (GTT). The most common presenting symptom in patients with CHM is vaginal bleeding. Approximately half the patients with CHM show signs of exuberant trophoblastic growth, with uterine enlargement and high levels of human chorionic gonadotropin (hCG). In contrast, patients with PHM usually present as though they have an incomplete or missed abortion, with bleeding, small uteri and low hCG levels. Cytogenetically, all chromosomal material in CHM is derived from the male. Hence, no fetal parts are identified. In PHM, dispermy results in a triploid conceptus, in which an abnormal fetus is present and ultimately dies. The diagnosis of CHM is usually confirmed by sonography when a vesicular pattern is noted. The ultrasound pattern in PHM is less consistent and depends on careful measurement of the gestational sac. Patients with CHM with marked trophoblastic hyperplasia, elevated hCG levels and enlarged uteri can develop significant medical complications, which should be recognized early and treated aggressively. These include acute respiratory distress syndrome, hyperthyroidism, preeclampsia and theca lutein cysts. All molar pregnancies should be evacuated promptly following a definitive diagnosis. If the patient no longer wishes to preserve her fertility, a hysterectomy will reduce the risk of developing nonmetastatic GTT. Following evacuation, careful hCG monitoring is mandatory since it is the most reliable and sensitive method for the early detection of GTT.(ABSTRACT TRUNCATED AT 250 WORDS)

Abortion, Incomplete↗
PubMed1994

[Anatomo-clinical characteristics of ovarian fibrothecal tumors. 19 cases over 12 years: 1981-1992[].

The quasi-constantly benign nature of fibrithecomas of the ovary has been known for many years. However, there have been very few studies of their incidence and clinical characteristics. The aim of this study, based upon 19 cases of fibrothecal tumours of the ovary operated upon at the Rabta maternity unit during a 12 year period, is to give an idea as to epidemiological factors, diagnostic conditions and treatment methods used among the women studied.

Adult↗
PubMed1993

[Maffucci syndrome and ovarian tumor].

Maffucci's syndrome was first described in 1881 and results of a mesodermic dysembryoplasia, congenital but not hereditary. Pathogenic hypothesis are multiple. This syndrome is characterized by the occurrence of multiple haemangiomas in the soft tissue, and multiple enchondromas of the bones. The association of ovary tumor is however exceptional. Four cases are reported in the literature; we report the fifth case.

Adolescent↗
PubMed1997

Ovarian torsion associated with granulosa-theca cell tumor in a mare.

A 12-year-old Morgan mare was examined because of stallion-like behavior of 45 days' duration. Palpation per rectum and transrectal ultrasonographic examination revealed a large left ovary with multiple cystic areas and crepitus. A granulosa-theca cell tumor was suspected. During hospitalization for further evaluation of the affected ovary, the mare developed signs of abdominal pain. Exploratory surgery revealed a large left ovary, which was black with a necrotic and friable surface, and a 720 degrees clock-wise torsion of the ovarian pedicle. Torsion was corrected, and oophorectomy was performed. The mare recovered satisfactorily from surgery. Histologic diagnosis was granulosatheca cell tumor with marked diffuse necrosis. To our knowledge, torsion of the ovarian pedicle has not been reported in the veterinary literature. However, it is not uncommon in women. Ovarian torsion seems to develop in association with neoplasia, cysts, and ovarian hyperstimulation syndrome. Ovarian torsion should be considered as a differential diagnosis for mares with a known ovarian pathologic change such as neoplasia or abscess if signs of abdominal pain are evident.

Animals↗
PubMed1997

Hormonally active ovarian tumors.

Steroid-hormone-producing ovarian tumors include those in which the neoplastic cells secrete hormones as well as a wide variety of tumors in which the neoplastic cells stimulate the ovarian stroma or adjacent hilus cells to become hormonally active.

Female↗
PubMed1998

Regression of subcutaneous lymphoma following removal of an ovarian granulosatheca cell tumor in a horse.

A 9-year-old Arabian mare was admitted for evaluation of multiple subcutaneous nodules and infertility. Fine-needle aspiration of one of the subcutaneous nodules resulted in a cytologic diagnosis of histiolymphocytic lymphoma. Palpation per rectum and transrectal ultrasonography revealed a mass associated with the left ovary. Excision of the ovarian tumor was performed, and a histopathologic diagnosis of granulosa-theca cell tumor was made. After removal of the granulosa-theca cell tumor, subcutaneous nodules regressed. The referring veterinarian reported that the nodules had also disappeared and then recurred after administration of a synthetic progestin. To further characterize the lymphoma and investigate this possible hormonal relationship, immunophenotyping and estrogen and progesterone receptor assays were performed. The subcutaneous lymphoma was classified as a T-cell rich B-cell lymphoma, results of estrogen receptor assays were negative, and results of progesterone receptor assays were positive. Clinical observations of subcutaneous lymphoma in horses indicate that the waxing and waning nature of these tumors may be associated with the estrous cycle, pregnancy, foaling, and lactation. Clinical observations and identification of progesterone receptors suggest that a relationship between serum steroid hormone concentrations, such as estrogen and progesterone, and subcutaneous lymphoma may exists.

Animals↗