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Updated: Nov 18, 2025

Establishment and Characterization of Small Bowel Neuroendocrine Tumor Spheroids
Published on: October 14, 2019
ASO Author Reflections: Indolent Growth and Small Bowel Neuroendocrine Tumor Management
S K Sherman1, C G Tran1, J R Howe2
1Department of Surgery, University of Iowa Carver College of Medicine, Iowa City, IA, USA.
Abstract:
Surgical treatment is central to management of small bowel neuroendocrine tumors (SBNETs). Current controversies include whether to resect asymptomatic primary tumors in the setting of unresectable metastases, the role of minimally invasive surgery, and how best to incorporate/sequence medical treatments. Low SBNET incidence, long event-times, and variability in disease burden, surgical technique, and institutional treatment preferences remain obstacles to conducting randomized surgical trials for SBNETs. With increasing referral of these patients to high-volume centers, cooperation between experienced SBNET clinicians should allow design of high-quality randomized trials to test new treatments and answer key questions.
Insights
Surgical management of small bowel neuroendocrine tumors (SBNETs) faces several controversies. High-volume centers and experienced clinicians can collaborate to design trials addressing these key questions.
Area of Science:
- Oncology
- Surgical Oncology
- Gastroenterology
Background:
- Surgical treatment is a cornerstone in managing small bowel neuroendocrine tumors (SBNETs).
- Current clinical practice involves significant debate regarding the optimal surgical approach.
- Key areas of controversy include resection of asymptomatic primary tumors with unresectable metastases, the utility of minimally invasive surgery, and the integration of medical therapies.
Purpose of the Study:
- To highlight the ongoing controversies in the surgical management of SBNETs.
- To identify barriers to conducting high-quality randomized surgical trials for SBNETs.
- To propose a path forward for establishing evidence-based surgical guidelines.
Main Methods:
- This abstract discusses existing challenges and proposes future directions based on current clinical knowledge.
- It emphasizes the need for collaborative efforts among experienced clinicians at high-volume centers.
- The focus is on designing randomized trials to resolve surgical management uncertainties.
Main Results:
- Conducting randomized surgical trials for SBNETs is hindered by low incidence, long event times, and variability in disease presentation and treatment approaches.
- Increasing patient referrals to specialized centers facilitate collaboration.
- Cooperation among experienced clinicians is essential for designing robust trials.
Conclusions:
- Addressing surgical controversies in SBNET management requires high-quality evidence from randomized trials.
- Collaboration between experienced clinicians at high-volume centers is crucial for trial design and execution.
- Future research should focus on resolving key surgical questions to optimize patient outcomes.
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