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| Titel: |
Analysis of metaplastic breast carcinoma: FNAC; histopathology and immunohistochemistry are complementary for diagnosis |
| Auteur: |
Abd El hafez, Amal Shawky, Abd El-aty |
| Verschenen in: |
Breast disease |
| Paginering: | Jaargang 34 (2013) nr. 2 pagina's 67-75 |
| Jaar: |
2013-09-27 |
| Inhoud: |
BACKGROUND: Metaplastic breast carcinoma (MBC) is a rare malignancy comprised of ductal, squamous and/or mesenchymal elements with problematic diagnosis. OBJECTIVE: This study analyses MBC identifying its cytologic and histologic features and emphasizing the combined role of FNAC, histopathology and immunohistochemistry (IHC) in its diagnosis. MATERIALS AND METHODS: Cytology and histopathology files search yielded 21 cases identified as MBC from January 2005 to December 2010. FNAC and the histopathology slides were re-examined for the presence and frequency of various elements. Cytological and histopathological diagnoses were made and the cases subtyped according to WHO classification. Cytokeratin and vimenten IHC were used to confirm diagnosis when required. RESULTS: On FNAC, 52.4% were diagnosed as malignant, 9.5% as suspicious for malignancy and 38.1% as benign lesions. Most frequent cytologic findings were squamous and spindle cell elements (52.4% each). Histopathology revealed 76.2% pure epithelial tumors and 23.8% mixed epithelial-mesenchymal tumors. Squamous cell carcinoma was the most frequent histological subtype (33.3%). Carcinosarcomas were dimorphic on IHC& spindle cell carcinomas were positive for both cytokeratin and vimentin. CONCLUSION: Presence of dual components, squamous, spindle elements, mesenchymal fragments and necrosis in moderate to high cellularity breast FNAC provides clues for the diagnosis of MBC. FNAC; histopathology and IHC complement for diagnosis. |
| Uitgever: |
IOS Press |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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