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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
1997-8-12
pubmed:abstractText
Various studies have reported the utility of anti-CD34 staining in the differential diagnosis of dermal spindle-cell tumors. To investigate whether monoclonal antibody Ki-M1p might add practical diagnostic information, we examined a total of 120 cutaneous spindle cell neoplasms using a panel of markers. Anti-CD34 antibody QBEnd/10 consistently stained dermatofibrosarcomas, Kaposi's sarcomas, neurofibromas, and, to a lesser extent, hemangiopericytomas. A positive reaction was also found in > 18% of the dermatofibromas. Ki-M1p staining showed an intense immunoreaction in all dermatofibromas, whereas no reactivity was observed in dermatofibrosarcomas. In addition, a subset of cells was labeled in atypical fibroxanthomas and Kaposi's sarcomas. Neurofibromas, spindle-cell hemangioendotheliomas, and hemangiopericytomas were negative. Dermatofibrosarcomas and atypical fibroxanthomas also moderately expressed smooth muscle-specific actin. Immunohistochemically, a discrimination between dermatofibrosarcomas and neurofibromas was possible only by means of an antibody against the nerve growth factor receptor. We conclude that the combination of several antibodies, in particular anti-CD34 and Ki-M1p, may improve the accuracy of diagnostic immunohistochemistry in the field of cutaneous spindle cell tumors. We speculate that dermatofibroma is primarily a macrophage-rich inflammatory lesion in which cytokine secretion induces a secondary proliferation of fibroblasts, whereas dermatofibrosarcoma is likely to issue from primitive dermal cells of uncertain origin.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0147-5185
pubmed:author
pubmed:issnType
Print
pubmed:volume
21
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
791-800
pubmed:dateRevised
2005-11-17
pubmed:meshHeading
pubmed-meshheading:9236835-Antibodies, Monoclonal, pubmed-meshheading:9236835-Antigens, CD34, pubmed-meshheading:9236835-Antigens, Surface, pubmed-meshheading:9236835-Autoantigens, pubmed-meshheading:9236835-Cytoplasm, pubmed-meshheading:9236835-Dermatofibrosarcoma, pubmed-meshheading:9236835-Diagnosis, Differential, pubmed-meshheading:9236835-Endothelium, Vascular, pubmed-meshheading:9236835-Hemangiopericytoma, pubmed-meshheading:9236835-Humans, pubmed-meshheading:9236835-Immunophenotyping, pubmed-meshheading:9236835-Neurofibroma, pubmed-meshheading:9236835-Nuclear Proteins, pubmed-meshheading:9236835-Proteasome Endopeptidase Complex, pubmed-meshheading:9236835-Sarcoma, Kaposi, pubmed-meshheading:9236835-Sensitivity and Specificity, pubmed-meshheading:9236835-Skin Neoplasms, pubmed-meshheading:9236835-Tumor Markers, Biological
pubmed:year
1997
pubmed:articleTitle
Immunophenotyping of dermal spindle cell tumors: diagnostic value of monocyte marker Ki-M1p and histogenetic considerations.
pubmed:affiliation
Department of General Pathology, University of Kiel, Germany.
pubmed:publicationType
Journal Article