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Diagn Pathol. 2013 Jan 28;8:14. doi: 10.1186/1746-1596-8-14.

Is mammary not otherwise specified-type sarcoma with CD10 expression a distinct entity? A rare case report with immunohistochemical and ultrastructural study.

Author information

1
Department of Pathology, The General Hospital of Beijing Military Command, Beijing, 100700, China. guangzhiyang@gmail.com

Abstract

Mammary sarcoma is extremely rare and the diagnosis is established only after metaplastic carcinomas and malignant phyllodes tumours are excluded. A rare case of not otherwise specified-type sarcoma with CD10 expression in the left breast in a 45-year-old female was presented. It was a high-grade tumour composed of spindle cells histologically. The immunohistochemical results showed that CD10, vimentin and EGFR were positive diffusely and SMA presented focally, whereas epithelial markers and other myoepithelial or myogenic markers were all negative. The electron microscope investigation demonstrated fibroblast-like features. The exact entity of the tumour remains to be studied because it resembles undifferentiated sarcoma or sarcomatoid metaplastic carcinoma to some degree, as well as high-grade malignant phyllodes tumour in particular.

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The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/9019879588725702.

PMID:
23356903
PMCID:
PMC3564823
DOI:
10.1186/1746-1596-8-14
[Indexed for MEDLINE]
Free PMC Article

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