Digestive diseases and sciences · 2026
Bile Acid Malabsorption Panel in Patients with Treated Neuroendocrine Tumors.
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Matar Ayah, Halfdanarson Thorvardur R, Sonbol Mohamad B, Hobday Timothy J, McGarrah Patrick W, Miller Morgan C, Eiring Rachel A, Donato Leslie J, Camilleri Michael
Аннотация
PURPOSE: Patients with neuroendocrine tumors experience diarrhea due to bioactive products of neuroendocrine tumors, bile acid malabsorption, or small bowel resection. We previously validated a bile acid malabsorption panel based on single stool primary bile acid (> 10%) and fasting serum C4 (> 52.5 ng/mL) to diagnose bile acid malabsorption.
METHODS: Our aim in this study was to audit diagnosis of bile acid malabsorption using the bile acid malabsorption panel in patients with treated neuroendocrine tumors compared with patients with functional diarrhea.
RESULTS: Bile acid malabsorption was identified in 14/23 (61%) patients with neuroendocrine tumors based on combined C4 and single stool primary bile acid. Bile acid malabsorption was more prevalent in patients with NET than in patients with functional diarrhea as demonstrated by significantly higher primary bile acids and serum C4.
CONCLUSION: The bile acid malabsorption panel is a feasible convenient test to positively diagnose bile acid malabsorption in patients with neuroendocrine tumors.
METHODS: Our aim in this study was to audit diagnosis of bile acid malabsorption using the bile acid malabsorption panel in patients with treated neuroendocrine tumors compared with patients with functional diarrhea.
RESULTS: Bile acid malabsorption was identified in 14/23 (61%) patients with neuroendocrine tumors based on combined C4 and single stool primary bile acid. Bile acid malabsorption was more prevalent in patients with NET than in patients with functional diarrhea as demonstrated by significantly higher primary bile acids and serum C4.
CONCLUSION: The bile acid malabsorption panel is a feasible convenient test to positively diagnose bile acid malabsorption in patients with neuroendocrine tumors.