Introduction: WHO classification from 2003 defines primary neuroendocrine carcinomas (NEC) of the breast as a group of tumors with expression of neuroendocrine markers in more than 50% of tumor cells. In the current WHO classification this category is renamed to “carcinomas with neuroendocrine features” without defined clear-cut of the percentage of tumor cells positive for neuroendocrine markers.
Conference: 14th Annual ENETS conference (2017)
Category: Non digestive NETs (bronchial, MTC pheochromocytoma) Pathology, grading, staging
Presenting Author: Alma Demirović