Abstract Library

#4588 Spatial transcriptomics identifies Wnt signalling in multifocal ileal neuroendocrine tumours

Introduction: Ileal neuroendocrine tumours (i-NETs) often present with multiple primary tumours (>30-40%). Recent studies showed no shared somatic mutations in multiple primary tumours, highlighting the need to examine the tumour microenvironment in tumorigenesis. The Wnt signalling pathway is crucial for organ stem cell regulation. While the Wnt/β-catenin pathway influences prostate and pancreatic NET/Cs, its role in i-NETs remains unclear.

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Presenting Author:

Authors: Yogo A, Akanuma N, Kim G, Thirlwell C, Mäkinen N,

Keywords: Wnt Signalling, Spatial Transcriptomics,

#4432 Prostatic small cells carcinoma: A case report

Introduction: Small cells prostate carcinoma is a rare entity with bad prognosis. It can be pure, diagnosed denovo, or mixed with adenocarcinoma. Platinum based chemotherapy remains the main therapeutic arm.

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Presenting Author:

Authors: Boukerzaza I, Zerrouk D, Laouar N, Filali T,

Keywords: prostate, small cell, carcinoma, chemotherapy,

#4349 Challenging management of ductal adenocarcinoma of the prostate with neuroendocrine differentiation: A case report

Introduction: Ductal adenocarcinoma of the prostate is a rare subtype of prostate cancer that arises from the ducts of the prostate gland. It is characterised by distinct histological features and a more aggressive clinical course. Neuroendocrine differentiation within this subtype is associated with a more aggressive phenotype and can lead to resistance to conventional androgen deprivation therapies.

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Presenting Author:

Authors: Zerrouk D, Boukerzaza I, Laouar N, Kassama Z, Mansouri F,

Keywords: neuroendocrine prostate cancer, progression, multidisciplinary approach,

#4168 BRCA gene mutations and NEN – Is it just random or a meaningful coincidence?

Introduction: A BRCA mutation denotes a genetic alteration found in either the BRCA1 or BRCA2 genes, both of which function as tumor suppressors. BRCA mutations are widely acknowledged for their link to breast and ovarian cancers, and rarely, to other malignancies such as the pancreas and prostate. Noteworthy, there have been limited reports associating BRCA mutations with NEN, and no possible co-relation to certain racial/ethnic populations has been reported to date.

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Presenting Author: Bel-Ange A

Authors: Bel-Ange A, Maimon O, Grozinsky-Glasberg S,

Keywords: BRCA gene mutation, NEN-neuroendocrine neoplasm,

#4108 Clinical and epidemiological profile of neuroendocrine differentiation – A hospital-based retrospective study

Introduction: Global research on neuroendocrine differentiation (NED) in carcinomas remains limited, despite its distinct clinical features, disease progression, pathology, treatment outcomes, and poor prognosis. At the 2023 ENETS Conference, we presented our findings on NED in gastric cancer and colorectal cancer. However, more studies are essential to better comprehend NED's clinical and epidemiological aspects.

Conference:

Presenting Author:

Authors: Wen Y, Shi S,

Keywords: Neuroendocrine differentiation, breast cancer, lung cancer, esophageal cancer, prostate cancer,