seminoma

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Related to seminomas: testicular cancer, testicular tumor

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 ?
Place of serum HCG assay in the follow-up of non-HCG-secreting testicular seminomas.
19-21) The tubular structures in these seminomas are formed by pseudoglandular arrangements in solid sheets of tumor cells, with no real glandular lumens, similar to embryonal carcinoma (Figure 1, C).
Low doses of bisphenol A promote human seminoma cell proliferation by activating PKA and PKG via a membrane G-protein-coupled estrogen receptor.
Seminoma is the most common single histologic type of germinal testicular neoplasms.
About 40 to 45 per cent of testicular cancers are early-stage seminoma and between 780 and 880 men are diagnosed with this stage of the disease each year in the UK.
The role of radiation in stage II testicular seminoma.
Extragonadal seminomas usually appear as large, lobulated, well-marginated, and homogeneous masses on CT and magnetic resonance (MR).
12,14 17) Although relatively rare, seminomas have been reported multiple times in psittacine species.
Testicular germ cell tumors can be split into two broad categories: seminomas and nonseminomatous germ cell tumors (NSGCTs).
Radiation therapy is an important treatment modality in oncology, especially for patients with lymphomas, seminomas, neuroblastomas, small cell cancers, and retinoblastomas.
Most commonly reported neoplasms are embryonal carcinoma, germ cell tumor and seminomas.
TGCTs can be grouped histologically into seminomas and nonseminomas.