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KP-1: not a specific marker. Staining of 137 sarcomas, 48 lymphomas, 28 carcinomas, 7 malignant melanomas and 8 cystosarcoma phyllodes.

AbstractThis study documents the reactions of the monoclonal antibody KP-1, which detects histiocytes in paraffin sections, with 137 sarcomas, 48 lymphomas, 28 carcinomas, 7 malignant melanomas and 8 cystosarcoma phyllodes. The soft tissue sarcomas had been previously immunophenotyped. Positive staining was obtained in all categories of sarcoma except clear-cell sarcomas. Most categories of sarcoma showed staining in less than 10% of tumour cells although a minority of leiomyosarcomas showed more extensive staining. Five of 7 malignant melanomas were also positive while all lymphomas and carcinomas were negative. We conclude that KP-1 positivity is not helpful in supporting the histiocytic origin of a tumour and is of limited value in the differential diagnosis of soft tissue sarcomas or their separation from other categories of malignancy.
AuthorsM Cassidy, B Loftus, A Whelan, B Sabt, D Hickey, K Henry, M Leader (Affiliation: Department of Pathology, Royal College of Surgeons in Ireland, Dublin.)
JournalVirchows Archiv : an international journal of pathology (Virchows Arch) Vol. 424 Issue 6 Pg. 635-40 ( 1994) ISSN: 0945-6317 GERMANY
PMID7519954 (Publication Type: Journal Article, Review)
Chemical References
  • Antigens, CD
  • Antigens, Differentiation, Myelomonocytic
  • CD68 antigen, human
  • Tumor Markers, Biological
Topics
  • Antigens, CD (analysis)
  • Antigens, Differentiation, Myelomonocytic (analysis)
  • Breast Neoplasms (chemistry)
  • Carcinoma (chemistry)
  • Female
  • Humans
  • Lymphoma (chemistry)
  • Melanoma (chemistry)
  • Phyllodes Tumor (chemistry)
  • Sarcoma (chemistry)
  • Soft Tissue Neoplasms (chemistry)
  • Staining and Labeling
  • Tumor Markers, Biological (analysis)