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 ?
Spermatocytic seminomas rarely metastasize and hence orchidectomy alone is indicated for treatment.
Spermatocytic seminoma is a rare testicular tumor that poses a diagnostic challenge.
Population based incidence and age distribution of spermatocytic seminoma.
Spermatocytic seminoma as compared to classical seminoma: an immunohistochemical and DNA flow cytometric study.
Placental-like alkaline phosphatase and DNA flow cytometry in spermatocytic seminoma.
The cancer-testis gene, NY-ESO-1, is expressed in normal fetal and adult testes and in spermatocytic seminomas and testicular carcinoma in situ.