When Wernicke Meets Beriberi: Dual Central and Peripheral Neurologic Manifestations of Thiamine Deficiency in a Non-alcoholic (P8-7.004)

To report a non-alcoholic case of concurrent central and peripheral neurologic involvement secondary to thiamine deficiency, and to emphasize the importance of recognizing this acute-on-chronic presentation. Although thiamine deficiency is classically associated with alcoholism and post-bariatric states, non-alcoholic etiologies—such as prolonged vomiting, restricted dietary intake, or malnutrition—are increasingly recognized. In this patient, the precise underlying cause remained uncertain.