Abstract Library

#4639 Prevalence and characteristics of incidental NET of the Meckel’s diverticula: Retrospective cohort study at a tertiary centre

Introduction: Meckel’s diverticulum is a rare finding in adults but can harbour malignancies such as leiomyosarcoma or neuroendocrine tumours (NET). The clinical presentation and tumour characteristics, including grading, have shown high variability in recent studies for NET.

Conference:

Presenting Author: Berckenhagen L

Authors: Berckenhagen L, Weidemann S, Amin T, Ritter A, Poppinga J,

Keywords: Meckel’s diverticula, incidental NET, acute abdomen, lower GI-bleeding,

#4605 Primary mammary neuroendocrine tumour: A case report and literature review

Introduction: Primary neuroendocrine carcinomas of the breast are rare, accounting for only 2 to 5% of all breast cancers. These tumours have recently been included in the latest WHO classification of breast tumours. The diagnosis can be challenging due to its uncommon presentation and overlap with other breast pathologies.

Conference:

Presenting Author:

Authors: Boudersa A, Kouadri N,

Keywords: primary neuroendocrine, breast cancer,

#4359 Treatment response and survival in 163 metastatic colorectal neuroendocrine carcinomas: A prospective cohort from the Nordic NEC registry

Introduction: Colorectal neuroendocrine carcinoma (CR-NEC) is a rare and aggressive disease. Most cases are metastatic at diagnosis and palliative chemotherapy is the only systemic treatment option.

Conference:

Presenting Author: Morken S

Authors: Morken S, Langer S, Knigge U, Hjortland G, Sundlöv A,

Keywords: neuroendocrine carcinoma, NEC, colorectal, chemotherapy,

#4185 Primary hepatic neuroendocrine neoplasms – Clinical characteristics and treatment outcomes of a rare disease

Introduction: Liver involvement in Neuroendocrine Neoplasms (NEN) most commonly encompasses metastases from other organs or from an unknown primary. The current WHO classification defines primary hepatic NEN (PHNEN) as a distinct entity. With only few cases of PHNEN reported and difficulty to discern them from hepatic metastases, evidence on optimal management is very limited.

Conference:

Presenting Author:

Authors: Apostolidis L, Kender Z, Flegka V, Winkler E, Krug S,

Keywords: hepatic NEN, liver NEN, PHNEN,

#4134 Assessment of the current and emerging criteria for the histopathological classification of lung neuroendocrine tumors in the lungNENomics project

Introduction: The lungNENomics project analysed 300 lung neuroendocrine tumors (NETs), of which 259 cases were pathologically reviewed by six expert pathologists.

Conference:

Presenting Author: Mathian E

Authors: Mathian E, Drouet Y, Sexton-Oates A, Papotti M, Pelosi G,

Keywords: Lung neuroendocrine neoplasm, Pathology, Deep-learning, Ki-67, PHH3,