Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
1987-3-12
pubmed:abstractText
Three cases of infantile digital fibromatosis were studied by electron microscopy and immunohistochemistry. The tumor was made up equally of myofibroblasts containing long narrow bundles of microfilaments with dense bodies. Another striking feature was the intracytoplasmic electron-dense inclusion. The inclusions were constituted of packed fibrils similar to those of the long bundles. At the periphery of these inclusions were seen prominent felt-like filamentous structures; the diameter varied from 5-12 nm. The 10 nm filaments were seen most abundantly in the cytoplasm surrounding the inclusions, but sometimes they were also found within the inclusions themselves, mainly at their periphery. These findings suggest that the inclusions may represent an abnormal accumulation of cytoskeletal proteins. On the other hand, various kinds of immunohistochemical study showed that actin, actomyosin, myosin, and vimentin were distinctly observed in cytoplasms of tumor cells. They were located fringing the intracytoplasmic inclusions, but the inclusion themselves showed negative findings, thus indicating a hollow-like staining pattern. These data can be synthesized as follows. The inclusion results from an accumulation of cytoskeletal proteins (actin-myosin complex and vimentin, at least), and antigenicity seems to be lost by for a certain mechanism or in the degenerative process.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0001-6632
pubmed:author
pubmed:issnType
Print
pubmed:volume
36
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1605-15
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Infantile digital fibromatosis. An electron microscopic and immunohistochemical study.
pubmed:publicationType
Journal Article, Case Reports