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seminoma
(redirected from spermatocytic seminoma)

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.01 sec.
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.

sem·i·no·ma (sm-nm)
n. pl. sem·i·no·mas or sem·i·no·ma·ta (-m-t)
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.

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

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.

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.


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COMMENT First described as carcinoma in situ, (5) ITGCN is now well established as a precursor to invasive germ cell tumors, with the exception of spermatocytic seminoma and possibly infantile germ cell tumors that include infantile yolk sac tumor and infantile mature teratoma.
 
 
 
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