Observational insights reveal niacin deficiency complications in neuroendocrine tumor patients, suggesting treatment strategies.
Pellagra may complicate functioning pulmonary atypical carcinoid and present as a subtle acral dermatosis rather than the classical photo‐distributed rash. In neuroendocrine tumor patients with chronic diarrhea and new skin changes, clinicians should suspect niacin deficiency and consider empiric nicotinamide, even when niacin assays are unavailable.
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Talib et al. (2026) studied this question.
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