Abstract Library

#3031 Primitive Peripheral Neuroectodermal Tumor: Case Report

Introduction: Primitive neuroectodermal tumors belong to the family of Ewing sarcomatous tumors, all derived from the same stem cell. The cells of the neural crest are believed to be at the origin of these tumors. The predilection sites of these sarcomas are para-vertebral region, chest wall and the distal ends. The positive diagnosis of primary neuroectodermal tumors requires the contribution of histopathology, immunohistochemistry and cytogenetics.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author:

Authors: Ikram B, Soumeya G,

Keywords: Primitive neuroectodermal tumor, primary, peripheral, pPNET, CD99, surgery, chemotherapy,

#964 Ewing Sarcoma a Dangerous Pitfall for Poorly Differentiated Neuroendocrine Carcinoma (PDEC) in Ileum

Introduction: Ewing sarcoma (ES) primary to the ileum (IES) has rarely been documented, and shows close similarities in histology and clinical presentation with PDEC.EWSR1-FEV translocation is exceedingly rare in ES, as FEV expression is restricted to prostate, brain, and serotonin neuroendocrine cells (NE) and related tumors.

Conference: 11th Annual ENETSConcerence (2014)

Presenting Author: Milione M

Authors: Milione M, Gasparini P, Coppa J, Pusceddu S, Pellegrinelli A,

Keywords: ileum, neuroendocrine, Ewing Sarcoma, EWSR1,

#646 Immunohistochemical (IHC) and Cytogenetic Approach for Improving Diagnosis and Therapy of Ewing Sarcoma (ES)/pPNET Arising in the Ileocecal Region

Introduction: ES/pPNET primary to the ileocecal region (IpPNET) have been rarely reported on and show close similarities in histology and clinical presentation with small round blue cell tumors. The EWS gene is fused to four members of the ETS family.

Conference: 10th Annual ENETSConcerence (2013)

Presenting Author: MILIONE M

Authors: Milione M, Gasparini P, Pusceddu S, Damato A, Pellegrinelli A,

Keywords: EWS, pPnet, FEV,