Thyroid transcription factor-1 positive primary breast cancer: a case report with review of the literature

Diagn Pathol. 2010 Jun 17:5:37. doi: 10.1186/1746-1596-5-37.

Abstract

This case describes an infiltrating breast tumour with thyroid transcription factor-1 (TTF-1) positive staining and ductal differentiation in a 72-year-old woman. The presence of ductal carcinoma in situ with positive TTF-1 is a strong indication that this is a primary tumour and not a metastasis from lung.On PET scan and CT follow up there were no other tumours found in this patient. We are not aware of any previously reported TTF-1 positive primary breast carcinoma with ductal differentiation.

Publication types

  • Case Reports
  • Review

MeSH terms

  • Aged
  • Biomarkers, Tumor / analysis*
  • Breast Neoplasms / chemistry*
  • Breast Neoplasms / diagnosis
  • Breast Neoplasms / pathology
  • Breast Neoplasms / surgery
  • Carcinoma, Ductal, Breast / chemistry*
  • Carcinoma, Ductal, Breast / diagnosis
  • Carcinoma, Ductal, Breast / pathology
  • Carcinoma, Ductal, Breast / surgery
  • Cell Differentiation
  • Female
  • Humans
  • Immunohistochemistry
  • Mastectomy
  • Neoplasm Invasiveness
  • Nuclear Proteins / analysis*
  • Positron-Emission Tomography
  • Thyroid Nuclear Factor 1
  • Tomography, X-Ray Computed
  • Transcription Factors / analysis*

Substances

  • Biomarkers, Tumor
  • NKX2-1 protein, human
  • Nuclear Proteins
  • Thyroid Nuclear Factor 1
  • Transcription Factors