Abstract Library

#4637 Non-functional retroperitoneal paraganglioma in a young patient: A case report

Introduction: Paragangliomas are neuroendocrine tumours arising in the parasympathetic nervous system, outside the adrenal gland. Retroperitoneal location is extremely rare. Non-functional paragangliomas often represent a diagnostic challenge.

Conference:

Presenting Author:

Authors: Aris H, Saidi M, Lahfa I,

Keywords: retroperitoneal paraganglioma, surgery, monitoring,

#4621 Clinical presentation and outcomes of sporadic neuroendocrine neoplasms in young adults: International multicentre analysis

Introduction: Most neuroendocrine neoplasms (NEN) are sporadic. Early disease onset has been increasingly observed in NEN.

Conference:

Presenting Author: Malczewska-Herman A

Authors: Malczewska-Herman A, Pavel M, Rinke A, Holmager P, Opalinska M,

Keywords: neuroendocrine neoplasm, sporadic, young adults, prognosis, survival,

#4563 Clinical case of a young woman with acromegaly, hyperprolactinemia and pituitary tumour with mixed morphology of adenoma and gangliocytoma

Introduction: Acromegaly is a rare disorder that develops due to persistent hypersecretion of somatotropic hormone in adults after closure of the growth plates. In the majority of cases, the cause is a pituitary adenoma.

Conference:

Presenting Author:

Authors: Markova M, Kirova I, Elenkova A, Robeva R, Zacharieva S,

Keywords: acromegaly, hyperprolactinemia, pituitary adenoma, gangliocytoma,

#4441 Gastric neuroendocrine neoplasms in younger patients: A retrospective single-centre study

Introduction: Gastric neuroendocrine neoplasms (gNENs) are rare neoplasms arising from stomach enterochromaffin-like (ECL) cells. Type I gNENs are the most common type, typically indolent and arising in the context of chronic atrophic gastritis (CAG). While type I gNENs are generally diagnosed in pts over 50, their occurrence in younger pts raises concern about the onset of CAG-related complications at an earlier age, potentially affecting tumour growth and clinical outcomes. Young-oriented studies on type I gNETs are still lacking in literature.

Conference:

Presenting Author:

Authors: Romano E, Rinzivillo M, Marasco M, Dell' Unto E, Esposito G,

Keywords: Gastric neuroendocrine neoplasm, Young adults, Chronic Atrophic Gastritis,

#4367 Comparative analysis of post-pancreatic surgical complications in elderly versus younger patients with inactive neuroendocrine pancreatic tumours

Introduction: The management of small, asymptomatic non-functional pancreatic neuroendocrine neoplasms (NF-pNENs) is contentious, with two main approaches: surgical resection and "watch-and-wait." Current guidelines recommend monitoring NF-pNENs under 2 cm based on retrospective data, although recent U.S. studies suggest improved survival with surgery for 1-2 cm NF-pNENs. Some suggest the "watch-and-wait" approach for older patients, though its efficacy is unclear.

Conference:

Presenting Author: Zamparas A

Authors: Zamparas A, Aghamaliyev U, Seidel G, Meyer Y, Werner J,

Keywords: nf-pnen, popf, pancreatic surgery, pNEN, pancreas,