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sex cord-gonadal stromal tumors/phosphatase
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15 resultados
Spermatogonial Nature of the Germ Cell Component of Canine Testicular Mixed Germ Cell-Sex Cord Stromal Tumours.
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The present study has characterized the germ cell component of canine testicular mixed germ cell-sex cord stromal tumours (MGSCTs) by examining the histological nature and histochemical and immunohistochemical features using gonocytic and spermatogonial cellular markers, c-Kit, placental alkaline
Fatal haemorrhage and neoplastic thrombosis in a captive African lion (Panthera leo) with metastatic testicular sex cord-stromal tumour.
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BACKGROUND
The study of neoplasia in wildlife species contributes to the understanding of cancer biology, management practices, and comparative pathology. Higher frequencies of neoplasms among captive non-domestic felids have been reported most commonly in aging individuals. However, testicular
Mixed germ cell sex cord-stromal tumors of the testis and ovary. Morphological, immunohistochemical, and molecular genetic study of seven cases.
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We present the morphological, immunohistochemical, and molecular genetic features of three cases of testicular and four cases of ovarian mixed germ cell sex cord-stromal tumors (MGSCT). The germ cells in the testicular MGSCTs morphologically differed from those in classical seminomas by lacking the
Sclerosing Sertoli cell tumor without expression of typical sex cord stromal tumor markers: case report and literature review.
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Sertoli cell tumor is a potential histologic mimic of other tumors, such as seminoma due to similar histology and overlapping clinical presentation. Sclerosing Sertoli cell tumor is a rare sex cord stromal tumor variant, with 16 cases reported in the English literature. We present an unusual case of
Immunohistochemical study of testicular sex cord-stromal tumors, including staining with anti-inhibin antibody.
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Inhibin is a peptide hormone produced by ovarian granulosa cells and testicular Sertoli cells. Ovarian granulosa cell and other sex cord-stromal tumors usually exhibit positive immunohistochemical staining with antiinhibin antibodies, and this may be valuable in differentiating these neoplasms from
Immunohistochemical study of mixed germ cell sex cord stromal tumours in 13 canine testes.
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Mixed germ cell sex cord stromal tumours (MGSCTs) are composed of seminiferous tubules, filled with admixed neoplastic Sertoli cells (SCs) and germ cells (GCs). The aim of the present study was to describe 13 canine testicular MGSCTs and to investigate the histochemical features and the
Uterine retiform sertoli-leydig cell tumor: report of a case providing additional evidence that uterine tumors resembling ovarian sex cord tumors have a histologic and immunohistochemical phenotype of genuine sex cord tumors.
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We report a case of a retiform Sertoli-Leydig cell tumor of intermediate differentiation presenting as a uterine intracavity polypoid mass in a 63-year-old woman. In contrast to sertoliform endometrioid carcinoma and to hitherto reported uterine tumors resembling ovarian sex cord tumors (UTROSCTs),
A practical approach to immunohistochemical diagnosis of ovarian germ cell tumours and sex cord-stromal tumours.
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Immunohistochemistry can be useful in the diagnosis of ovarian germ cell tumours and sex cord-stromal tumours. A wide variety of markers are available, including many that are novel. The aim of this review is to provide a practical approach to the selection and interpretation of these markers,
The use of immunohistochemistry in the differential diagnosis of tumors of the testis and paratestis.
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Although most testicular and paratesticular tumors can be recognized by their light microscopic features, some raise significant differential diagnostic questions. Immunohistochemical staining has proved of significant value in this situation. There is still a role for the traditional markers,
Bilateral Gonadoblastoma With Dysgerminoma in a Phenotypically Normal Female With 46XX Karyotype: Report of a Rare Case and Literature Review
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Gonadoblastoma is a rare ovarian neoplasm which belongs to "germ cell-sex cord-stromal tumor" category. This tumor is frequently associated with invasive germ cell malignancy. It commonly arises in dysgenetic gonads of young individuals who are phenotypically females but possess 46XY karyotype. It
Tubular seminoma. An immunohistochemical and DNA flow-cytometric study of four cases.
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The histomorphologic features, immunohistochemical reactivity, and DNA content of four cases of a rare tubular variant of seminoma are presented. These neoplasms were characterized by a predominantly tubular architectural pattern that resembled yolk sac tumor, embryonal carcinoma, and sex
[Tumorous diseases in patients with the testicular feminization syndrome ("androgen insensitivity" syndrome)--description of two cases].
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OBJECTIVE
To describe tumors occurring in two cases of testicular feminization syndrome.
METHODS
Case report.
METHODS
Dpt. of Special Diagnostics SPAU, University Hospital Plzen.
METHODS
Two cases of testicular feminization syndrome were selected from four cases in our registry. Patients were 45 and
Immunohistochemical evaluation of canine ovarian tumors.
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Canine ovarian tumors (epithelial tumor, sex-cord stromal tumor, germ cell tumor) classifying into 9 histological types were examined immunohistochemically using placental alkaline phosphatase (PLAP), cytokeratin7 (CK7), desmin, S100, AE1/AE3, inhibin alpha, vimentin, and alfa feto-protein (AFP).
Precocious puberty in a 7-year-old boy: a novel case.
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A 7-year-old boy was referred for evaluation of precocious puberty, evidenced by penile enlargement and pubic hair formation. His testicular size was prepubertal bilaterally. A comprehensive hormonal evaluation showed an elevated serum testosterone value (4.0 nmol/L) and a prepubertal gonadotropin
Case Report of Misleading Features of a Rare Sertoli Cell Testicular Tumor.
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Testicular Sertoli cell tumors are extremely rare. Generally, they are benign neoplasms, which belong to a group called sex cord-stromal tumors. In this article, we present a case report of a Sertoli cell tumor, which was accidentally discovered during a urological consultation of a 42-year-old
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