alexa Neuroendocrine Differentiated Breast Carcinoma- Diagnostic And Prognostic Implications
ISSN: 2161-1076

Surgery: Current Research
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13th International Conference on Surgical Pathology & Practice
March 27-28, 2017 Madrid, Spain

Kokila Sreeramaiaha and Muthuvelu Natarajan
Bangalore Medical College and Research Institute, India
ScientificTracks Abstracts: Surgery Curr Res
DOI: 10.4172/2161-1076.C1.029
Abstract
Neuroendocrine differentiation in breast carcinomas is rare with an incidence of 2−5%. Among the histopathological subtypes, mucinous carcinoma of breast appears to have the greatest association with neuroendocrine differentiation. This is the report of a case of infiltrating ductal carcinoma with extensive neuroendocrine differentiation. The patient, a 65-year-old elderly female clinically presented with a mass in the upper outer quadrant of the left breast. FNAC of the breast mass revealed cytological atypia and pleomorphism, suggestive of malignancy; ultrasonogram of the breast lesion was reported as BIRADS –V. Grossly the tumour measured 6×5×4 cms3. The cut surface of the tumour was grey white with areas of hemorrhage and necrosis. Microscopically, the tumor was composed of a predominant neuroendocrine component admixed with infiltrating ductal component. Extensive areas of necrosis were also evident. The tumour cells which were arranged in sheets, trabecular and lobular patterns had moderate cytoplasm with round to oval nuclei exhibiting salt and pepper chromatin. Rosette-like arrangement of tumour cells was also noted. Focally, tumor cells showed pleomorphism with abundant cytoplasm, irregular vesicular nuclei and prominent nucleoli. On immunohistochemistry, the tumour was triple negative (ER -ve, PR -ve, HER2 -ve). Neuroendocrine markers showed strong S100 positivity and patchy synaptophysin and chromogranin positivity. Results of molecular testing are awaited. This case is presented to highlight that it is important to classify neuroendocrine breast tumours as primary neuroendocrine carcinoma when more than 50% of the tumour shows neuroendocrine features and as neuroendocrine differentiated breast carcinoma when neuroendocrine features is present in less than 50% of the tumour. While primary neuroendocrine carcinoma of the breast carries a worse prognosis, neuroendocrine differentiated breast carcinoma does not confer a poor prognosis nor carry a poor clinical outcome.
Biography

Kokila Sreeramaiah has a keen interest in Immunohistochemistry, Oncopathology and Molecular Pathology. She has graduated from Rajiv Gandhi University of Health Sciences in Bangalore, India. She currently serves as Assistant Professor of Pathology at Bangalore Medical College and Research Institute, India. She has published her research in cervical carcinoma and is currently working on evaluation of diagnostic markers for oral squamous cell carcinomas. She is passionate about teaching and is actively engaged in the medical curriculum of her educational institution.

Email: [email protected]

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