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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
1991-11-7
pubmed:abstractText
We studied five cystic ovarian mucinous tumors with spindle cell mural nodules to define their histologic and immunohistochemical properties. Three of these mural nodules consisted of carcinomatous nests surrounded by highly pleomorphic polygonal and spindle cells. There were transition zones between the pleomorphic cells and the cell nests. In all three cases, both cell populations coexpressed cytokeratin and vimentin, suggesting a diagnosis of anaplastic carcinoma. A fourth nodule consisted of moderately differentiated adenocarcinoma embedded in prominent, cytologically uniform spindle cells. These cells were histologically distinct from the carcinoma; there were no zones of transition. The carcinoma was strongly positive for cytokeratin but only weakly positive for vimentin; the spindle cells expressed vimentin but not cytokeratin. We diagnosed this lesion as carcinoma with a reactive spindle cell stroma. A fifth mural nodule was composed entirely of interlacing fascicles of uniform spindle cells that were negative for cytokeratin but positive for vimentin, muscle-specific actin, and desmin; these findings support a diagnosis of leiomyoma. Two of the four patients with malignant nodules died of disease; the rest are alive and disease-free after follow-up intervals ranging from 1 to 4 years. This study demonstrates the usefulness of immunohistochemistry in distinguishing variant forms of spindle cell mural nodules in cystic ovarian mucinous tumors. It further suggests that malignant nodules do not necessarily carry a poor prognosis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0147-5185
pubmed:author
pubmed:issnType
Print
pubmed:volume
15
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1055-62
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Spindle cell mural nodules in cystic ovarian mucinous tumors. A clinicopathologic and immunohistochemical study of five cases.
pubmed:affiliation
Department of Pathology, University of Virginia Health Sciences Center, Charlottesville 22908.
pubmed:publicationType
Journal Article