seminoma


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seminoma

 [sem″ĭ-no´mah]
a malignant tumor of the testis thought to arise from primordial germ cells of the sexually undifferentiated embryonic gonad.

sem·i·no·ma

(sem'i-nō'mă),
A radiosensitive malignant neoplasm usually arising from germ cells in the testis of young male adults that metastasizes to the paraortic lymph nodes; a counterpart of dysgerminoma of the ovary.
[L. semen, seed (semen) + G. -oma, tumor]

seminoma

/sem·i·no·ma/ (-no´mah) a radiosensitive, malignant neoplasm of the testis, thought to be derived from primordial germ cells of the sexually undifferentiated embryonic gonad. Cf. germinoma.
classical seminoma  the most common type, composed of well-differentiated sheets or cords of polygonal or round cells (seminoma cells).
ovarian seminoma  dysgerminoma.
spermatocytic seminoma  a less malignant form characterized by cells resembling maturing spermatogonia with filamentous chromatin.

seminoma

(sĕm′ə-nō′mə)
n. pl. semino·mas or semino·mata (-mə-tə)
A malignant tumor of the testis arising from sperm-forming tissue.

seminoma

[sem′inō′mə] pl. seminomas, seminomata
Etymology: L, semen + oma, tumor
a malignant tumor of the testis. It is the most common testicular tumor and is believed to arise from the seminiferous epithelium of the mature or maturing testis. The two types are classic, or typical, and spermatocytic; anaplastic seminoma is a variant of the classic type. Compare dysgerminoma.
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Seminoma

seminoma

Lance Armstrong tumor Urology A testicular germ-cell neoplasm and most common tumor of ♂ < age 40 Clinical Mass, ± pain Management Excision, RT Prognosis ± 90% 5-yr survival if treated early. See Anaplastic seminoma, Germ cell tumor, Spermatocytic seminoma.

sem·i·no·ma

(sem'i-nō'mă)
A radiosensitive malignant neoplasm usually arising from germ cells in the testis of young male adults that metastasizes to the paraortic lymph nodes; a counterpart of dysgerminoma of the ovary.
[L. semen, seed (semen) + G. -oma, tumor]

seminoma

A malignant tumour of the testicle, composed of cells resembling primitive germ cells. The seminoma is highly sensitive to radiotherapy.

Chevassu,

Maurice, French physician, 1877–.
Chevassu tumor - testicular germ-cell tumor affecting men over 30 years of age. Synonym(s): seminoma

seminoma

tumor of the testis thought to arise from basal spermatogonia. They are common in older dogs and occur often in cryptorchid testes. Seminomas also occur in the male of other domestic species.
References in periodicals archive ?
Correlation between primary tumor pathologic features and presence of clinical metastasis at diagnosis of testicular seminoma.
In this report, we describe a case of bilateral testicular seminoma with hepatic metastasis.
In contrast to GCNIS, intratubular seminoma shows complete filling and expansion of the seminiferous tubules by neoplastic germ cells and an absence of Sertoli cells or any normal seminiferous tubule components (Figure 5, E).
No major differences in associations were observed between seminomas and nonseminomas for any of the maternal or paternal solvent exposures (Table S5).
The aims of this study are to investigate the presence and localization of NIS expression in pure testicular seminomas, lymph nodes with seminoma metastasis, and embryonal carcinomas by immunohistochemical methods and to discuss RAI treatment as an alternative therapy
Among the individual GCTs, seminomas were the most common followed by TeratoCa.
Approximately, 90% of these tumours are seminomas, especially those that occur in the abdominally located testis.
Seminomas complicating undescended intraabdominal testes in patients with prior negative findings from surgical exploration.
Seminoma with hyperesterogenemia in a Yorkshire Terrier.
According to guidelines, PET scans have limited positive predictive value for residual disease, especially for seminoma.
Key words: seminoma, metastasis, testes, avian, trumpeter hornbill, Bycanistes buccinator
Los tumores mas frecuentes en testiculos son: tumor de celulas de Sertoli (TCS), tumor de celulas intersticiales (o tumor de celulas de Leydig) y Seminoma (tumor de celulas germinales o tumor de espermatogonias) (Fogel, 2009; Mialot, 2012).