Abstract Library

#3072 Rb and p53 Status Determination by Immunochemistry Is Complementary in Routine Practice to Genetic Testing of Neuroendocrine Neoplasms

Introduction: Rb and p53 status may help distinguishing well from poorly differentiated neuroendocrine neoplasms (NEN) and may predict response to chemotherapy. Studies correlating Rb/p53 genetic and immunohistochemistry were performed on high-quality frozen samples with high throughput techniques efficient for copy number determination. This situation differs from routine practice in which small deletions may be hard to detect on formalin-fixed paraffin-embedded (FFPE) samples with a gene panel approach.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author: Cros J

Authors: Chen R, Lacroix L, De Rycke O, Lacombe C, Cazes A,

Keywords: rb, p53, aggressive neuroendocrine tumors, biomarker,