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sex cord-gonadal stromal tumors/προγεστερόνη
Ο σύνδεσμος αποθηκεύεται στο πρόχειρο
Σελίδα 1 από 58 Αποτελέσματα
Management and prognosis of patients with ovarian sex cord tumor with annular tubules: a retrospective study.
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Σύνδεση εγγραφή
BACKGROUND
Owing to the rarity of sex cord tumor with annular tubules (SCTAT), it is difficult to recognize SCTAT clinically and there is no standard treatment. The aim of our study was to investigate the treatment outcomes and prognosis of patients with ovarian SCTAT.
METHODS
A cohort of 13
Progesterone secreting Sertoli cell tumor of the ovary.
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Σύνδεση εγγραφή
A 33-year-old woman presenting with secondary amenorrhea and galactorrhea was found to have a Sertoli cell tumor of the ovary. The neoplasm also had a sex cord tumor with annular tubules (SCTAT) component. Further investigations revealed that in many respects the patient was endocrinologically
Elevated serum progesterone levels in postmenopausal women with mucinous ovarian tumors.
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Σύνδεση εγγραφή
The aim of the study was to evaluate the association between tumor histology and serum sex hormone levels in postmenopausal women with ovarian tumors.
We preoperatively measured serum levels of gonadotropins and sex steroids, including estradiol, progesterone, and testosterone, in 69 postmenopausal
[Estrogen and progesterone receptors in human ovary and ovarian tumors].
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Σύνδεση εγγραφή
Ovarian specimens from 159 different patients were analyzed for estrogen and progesterone receptor (ER and PR) content with the Dextran-coated Charcoal method. The results indicated that the contents of ER and PR in malignant ovarian tumors were not correlated with the menstrual cycle of the
Non-Leydig sex-cord tumors of the testis. The place of immunohistochemistry in diagnosis and prognosis. A study of twenty cases.
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Σύνδεση εγγραφή
In 20 sex-cord tumors of the testes, we investigated immunohistochemistry as a possible method for histopathological diagnosis and evaluation of prognosis. We examined the following molecules: inhibin, CD99, cytokeratin, vimentin, MIB-1, estrogen receptors and progesterone receptors. These tumors of
Premature lactation in a heifer with a sex cord-stromal tumor.
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Σύνδεση εγγραφή
A tumor of the ovary was believed to be responsible for initiating lactation in a nonpregnant heifer. The only abnormal clinical sign was milk secretion from all 4 mammary glands and a large mass in the abdomen. Concentrations of estrogen and progesterone were markedly high. The mass was removed and
Characterization of gonadal sex cord-stromal tumor cell lines from inhibin-alpha and p53-deficient mice: the role of activin as an autocrine growth factor.
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Σύνδεση εγγραφή
Inhibin-alpha-deficient mutant mice have been generated by a targeted deletion of the inhibin-alpha gene through homologous recombination in murine embryonic stem cells. Essentially all of the homozygous mutants develop gonadal sex cord-stromal tumors. To investigate their endocrine and
Inhibin A is a sensitive and specific marker for testicular sex cord-stromal tumors.
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Σύνδεση εγγραφή
We compared the expression of inhibin A, chromogranin, synaptophysin, S-100 protein, cytokeratins AE1/AE3, 7, and 20, and estrogen and progesterone receptors in testicular sex cord-stromal tumors: 11 Sertoli cell tumors, 3 Sertoli cell adenomas (nodules), 26 benign Leydig cell tumors, 7 malignant
Co-occurrence of a metastatic mammary liposarcoma and an ovarian sex-cord stromal tumor in a dog.
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Sarcoma arising in the mammary gland is a rare tumor in dogs, and primary liposarcoma with metastatic behavior has never been previously reported among canine mammary tumors. A 14-year old female poodle had a mammary mass diagnosed as pleomorphic liposarcoma. Two years following surgical removal,
Comparative immunohistochemical analysis of granulosa and sertoli components in ovarian sex cord-stromal tumors with mixed differentiation: potential implications for derivation of sertoli differentiation in ovarian tumors.
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Σύνδεση εγγραφή
Granulosa cell tumors of the ovary occasionally show admixed Sertoli components, just as tumors that are predominantly Sertoli or Sertoli-Leydig cell tumors can contain minor granulosa elements. Although the immunoprofiles of pure granulosa cell tumors and pure Sertoli cell tumors have been
Ovarian sex cord tumor with annular tubules: a report of six cases.
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Σύνδεση εγγραφή
Six patients suffering from ovarian sex cord tumor with annular tubules (SCTAT) were reported in this article with special reference to the clinical features, histological characteristics, sex hormone profile, and management of disease. SCTAT was documented to be a estrogen-progesterone-secreting
Endocrine and morphological study of a case of ovarian sex-cord tumor with annular tubules in a woman with Peutz-Jeghers syndrome.
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Σύνδεση εγγραφή
A bilateral ovarian sex-cord tumor with annular tubules (SCTAT) was incidentally discovered in an amenorrheic patient with Peutz-Jeghers syndrome during conservative surgery in which a small non-capsulated mass was removed from each ovary. Ovulation was then induced over two consecutive cycles with
Sex steroid biosynthesis enzymes in ovarian sex-cord stromal tumors.
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Σύνδεση εγγραφή
Previous studies on neoplastic and hyperplastic ovarian lesions using paraffin-embedded material have demonstrated immunolocalization of sex steroid biosynthetic enzymes (SSBEs): P-450 side chain cleavage (P-450 SCC), which converts cholesterol to pregnenolone; 3 beta-hydroxysteroid dehydrogenase (3
Testicular sex cord stromal tumour with granulosa cell differentiation: detection of steroid hormone receptors as a possible basis for tumour development and therapeutic management.
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Σύνδεση εγγραφή
A testicular sex cord stromal tumour with granulosa cell differentiation, typical of granulosa cell tumours of the adult type, was investigated immunohistologically on snap frozen and paraffin wax embedded material. The predominance of vimentin and the additional expression of cytokeratin subtypes 8
[Ovarian sex cord stromal tumors with annular tubules: a report of 6 cases].
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Σύνδεση εγγραφή
Six patients with ovarian sex cord stromal tumor with annular tubules (SCTAT) were diagnosed and treated from 1968 through 1988, accounting for 6% of a total of 99 cases of ovarian sex cord stromal tumors admitted during the same period. Of these, 3 were operated on for the first time and 3 were
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