Endocrine Abstracts

Background: The epidemiology of typical (TC) and atypical carcinoid (AC) bronchopulmonary neuroendocrine tumors (pulmNETs) is not well understood. We aim to describe the incidence of pulmNETs and differences by sex and race and ethnicity (R&E) in the diverse state of California.Methods: All patients with malignant pulmNETs diagnosed from 1992-2019 in the population-based California Cancer Registry were identified by histology (ICD-O-3 code 8240 for T...

Background: Renal neuroendocrine tumors (NETs) are a particularly rare subset of NETs, with fewer than 100 cases described in the literature. Of these, next generation sequencing (NGS) findings have been described in fewer than 10 cases, all but one of which had grade 1 disease.Methods: A single-center, IRB-approved retrospective analysis of patients with grade 2 or 3 well-differentiated renal NETs treated at our institution from 2016-2023 for whom NGS d...

Background: Neuroendocrine Tumor (NET) patients are the fastest growing population of cancer patients, hence we wanted to assess if there are gaps in patient knowledge and awareness of their disease. To improve our understanding of the factors affecting patient knowledgeability, we looked at their educational level, satisfaction with educational materials provided at initial diagnosis, other sources used for awareness, and their level of accessibility to education materials ab...

Background: Neuroendocrine tumors are a rare group of cancers. The median overall survival of these patients is ~10 years, presenting a unique issue of accrued financial distress over a long period of time. We attempted to look at the potential determinants of financial distress in NET patients, focusing on their demographics, comorbidity burden, educational status and tumor symptoms.Methods: A total of 155 patients have been enrolled in the Roswell Park...

Background: Serotonin produced by ileum neuroendocrine tumors (i-NETs) promotes development of the mesenteric mass (MM) associated with lymph node metastases. We previously reported that more extensive MM progression along the superior mesenteric vessels predicts a lower rate of complete surgical resection. In this study, we hypothesized that tumoral serotonin production is associated not only with the development of MM but also its progression, and we examined serotonin level...

Background: Serotonin production by ileum neuroendocrine tumors (i-NETs) is considered a critical mediator of the fibrotic reaction in mesenteric mass (MM)/ lymph node metastasis. Antidepressants modify serotonin dynamics: however, their role in MM formation is uncertain. We hypothesized that histories of antidepressant use affect MM formation. This study examined the correlation between antidepressant use and MM formation.Methods: One hundred eighty-two...

Background: Various social determinant of health (SDOH) metrics and indices are utilized to evaluate access to cancer care and to explain disparities in outcome in pancreatic neuroendocrine tumors (PNETs). Little prior work has compared the validity of various geographic metrics. Therefore we aimed to examine different geographic metrics validity (from smallest to largest: census block group< census tract< zip code< county) utilizing single institutional data in a ...

Background: Tumor size and lymph node involvement (stage) have been utilized to prognosticate pancreatic neuroendocrine tumors (PNETs) but the influence of race and social vulnerability on these factors remains unexplored. Therefore we sought to explore this in a racially and socioeconomically diverse cohort.Methods: We reviewed records of all patients who underwent surgical resection for PNETs from 2006-2022 at a single NCI-designated cancer center in t...

Background: While the epidemiology of overall and gastrointestinal neuroendocrine neoplasms (NENs) has been reported, data specific to lung NENs remain scarce. Such understanding is crucial in designing tailored strategies to improve care and outcomes. We examined the incidence, overall survival (OS), and disease-specific death (DS-deaths) for lung NENs.Methods: We conducted a population-based retrospective cohort study of adult patients with incident lu...

Background: Patients with neuroendocrine neoplasms (NENs) have a high burden of chronic symptoms. We assessed symptom burden and overall quality of life (QOL) for eNET study participants and analyzed differences by age, sex, and NEN primary site.Methods: eNET is a prospective, cohort study on the Eureka digital health platform enrolling individuals with advanced NENs. Participants completed validated surveys on an internet-supported device at baseline an...

Background: On the basis of prior large epidemiologic and retrospective studies on treatment-related side effects, it appears that there are sex-based differences in the epidemiology of NENs and treatment-related side effects. The purpose of this study was to examine sex differences in incidence, diagnoses present during hospital stay, and mortality among patients with NENs.Methods: The NIS database was used to define an unweighted sample of patients wit...