P-cadherin as a marker in the differential diagnosis of breast lesions.

• To assess the value of the calcium dependent cell adhesion molecule P-cadherin as a myoepithelial marker in the differential diagnosis of benign and malignant breast lesions.Immunohistochemical analysis of normal breast, sclerotic breast lesions, tubular carcinomas, and ductal carcinoma in situ using a P-cadherin specific antibody and comparison with smooth muscle actin.All myoepithelial cells in normal breast ducts, ductules, and lobules and sclerotic lesions showed strong staining for P-cadherin. There was no staining of tubular carcinomas; myoepithelial cells were demonstrated around in situ carcinomas. Weaker reactivity was seen in a proportion of cells in some hyperplasias and in situ carcinomas. This weak reactivity in these tissues was not seen for smooth muscle actin but in radial scars, tubular carcinomas, and ductal carcinoma in situ staining of stromal cells caused difficulties in the identification of myoepithelial cells.P-cadherin is a useful marker in the differential diagnosis of breast lesions.

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP  -- Medicinsk bioteknologi -- Biomedicinsk laboratorievetenskap/teknologi (hsv//swe)

MEDICAL AND HEALTH SCIENCES  -- Medical Biotechnology -- Biomedical Laboratory Science/Technology (hsv//eng)

Nyckelord

Adenocarcinoma

diagnosis

Biomarkers

Tumor

analysis

Breast Diseases

diagnosis

Breast Neoplasms

diagnosis

Cadherins

analysis

Carcinoma

Intraductal

Noninfiltrating

diagnosis

Diagnosis

Differential

Female

Humans

Neoplasm Proteins

analysis

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