Linked Life Data

6471811

Source:http://linkedlifedata.com/resource/pubmed/id/6471811

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1984-10-11
pubmed:abstractText
Spermatocytic seminoma of the testis is a specific clinicopathologic entity and a unique germ cell neoplasm without a homologous counterpart in the ovary or in extragonadal sites. Six spermatocytic seminomas were subjected to a detailed ultrastructural study, and seven spermatocytic seminomas were analyzed using microspectrophotometry. Five classic seminomas were also subjected to microspectrophotometric analysis for comparison. Ultrastructurally, spermatocytic seminoma cells were shown to contain a larger number of cytoplasmic organelles than classic seminoma, but they did not exhibit structures that are diagnostic of cells capable of meiotic division and precursors of acrosomes. Microspectrophotometric analysis confirmed the absence of haploid cells and indicated that spermatocytic seminoma cells have lower modal numbers than classic seminoma cells. The majority of spermatocytic seminomas exhibit hyperdiploid or peritriploid DNA modal values, whereas in classic seminomas these values range from peritriploid to peripentaploid. These findings support the view that spermatocytic seminoma represents a better differentiated variant of seminoma than the classic type, but they oppose the view that spermatocytic seminoma is composed of spermatocytes capable of meiotic division. It is considered that spermatocytic seminoma is composed of cells differentiating in the direction of spermatocytes but which have not yet reached this stage of differentiation.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0023-6837
pubmed:author
pubmed:issnType
Print
pubmed:volume
51
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
343-9
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
Spermatocytic seminoma. Ultrastructural and microspectrophotometric observations.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't