27 September 2021
: Case report 
Radiological and Histological Correlation in Small Cell Neuroendocrine Carcinoma of the Breast: A Case Report
Challenging differential diagnosis, Rare disease
Maha M. Gharaibeh1ABDEF*, Eyhab A. Elobeid12ACEF, Mwaffaq A. El-heis1BEF, Lama A. Bataineh
3BEF, Mohammed S. Alorjani4DEF
DOI: 10.12659/AJCR.932274
Am J Case Rep 2021; 22:e932274
Figure 5. Immunohistochemical stains of the left breast tumor. A. The tumor shows patchy but strong immunoreactivity for CK7 (200× total magnifications). B. Synaptophysin marker with diffuse and moderate positivity (200× total magnifications). C. Chromogranin marker with diffuse and weak positivity (400× total magnification). D. CD56 marker with diffuse and strong positivity (400× total magnification). E. Focal and weak positivity for TTF1 marker (200× total magnification). F. Ki67 proliferation index estimated to be more than 60% in tumor cells (400× total magnification).