• Yuqi Yang, Tong Zhou, Xue Zhao, Yunjia Cai, Yao Xu, Xiaokun Gang, and Guixia Wang.
• Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, China.
• Medicine (Baltimore). 2024 Apr 26; 103 (17): e37916e37916.

AbstractPheochromocytoma and paraganglioma (PPGL) are rare neuroendocrine tumors with diverse clinical presentations. Alterations in energy expenditure state are commonly observed in patients with PPGL. However, the reported prevalence of hypermetabolism varies significantly and the underlying mechanisms and implications of this presentation have not been well elucidated. This review discusses and analyzes the factors that contribute to energy consumption. Elevated catecholamine levels in patients can significantly affect substance and energy metabolism. Additionally, changes in the activation of brown adipose tissue (BAT), inflammation, and the inherent energy demands of the tumor can contribute to increased resting energy expenditure (REE) and other energy metabolism indicators. The PPGL biomarker, chromogranin A (CgA), and its fragments also influence energy metabolism. Chronic hypermetabolic states may be detrimental to these patients, with surgical tumor removal remaining the primary therapeutic intervention. The high energy expenditure of PPGL has not received the attention it deserves, and an accurate assessment of energy metabolism is the cornerstone for an adequate understanding and treatment of the disease.Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.

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