ArticleJournal of the Endocrine Society2026
Pancreatic neuroendocrine tumors in patients with tuberous sclerosis: a multicenter study and systematic review.
Article in Journal of the Endocrine Society, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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24 authors.
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Abstract
Introduction: Pancreatic neuroendocrine tumors (pNETs) are a recognized feature of tuberous sclerosis complex (TSC). The current evidence suggests that pNETs occurring in TSC may exhibit a different clinical course from sporadic cases, but their natural history remains poorly characterized. Objective: This study aimed to characterize the demographics, clinical presentation, management, and long-term outcomes of TSC-associated-pNETs and to propose possible guidelines for surveillance and management. Materials and Methods: We conducted a multicenter retrospective review of TSC-pNET patients from 6 UK TSC specialist clinics and from 3 NET referral centers, from 2008 to 2024. Data on demographics, tumor characteristics, management, and outcomes, were collected. A systematic review of the literature from 2009 to 2026 on TSC-pNETs was also performed. Results: We identified a total of 26 consecutive cases with the TSC-pNET-association in our cohort: 21 cases of pNETs from TSC specialist clinics (1.1% of the population), and 5 cases of TSC-pNETs from the NET referral centers (0.25% of the population). An additional 80 cases were identified from the published literature. We observed a wide spectrum of clinical phenotypes, with the majority being nonfunctioning pNETs (n = 24; 92%), whereas 2 patients were diagnosed with glucagonomas. Surgical intervention was the mainstay initial treatment, the indication being either functional pNETs, or large or symptomatic nonfunctioning pNETs. Conclusion: TSC-pNETs are rare and mostly nonfunctioning tumors with variable clinical behavior. Due to their uncertain malignant potential, we suggest that baseline pancreatic imaging should be incorporated into TSC surveillance, and we emphasize the need for heightened pNET surveillance and updated management recommendations.
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