Cushing's syndrome: An in-depth review of pathophysiology, diagnosis, and manifestations
Keywords:
Cushing's syndrome, glucocorticoids, ACTH-dependent, ACTH-independent, diagnosis, treatment optionsAbstract
Background: Cushing's syndrome results from prolonged exposure to elevated glucocorticoids, leading to significant morbidity and mortality. Despite its historical identification over a century ago, challenges remain in diagnosing and treating this condition due to its non-specific symptoms and complex underlying mechanisms. Aim: This review aims to elucidate the pathophysiology, diagnostic approaches, and treatment options for Cushing's syndrome to enhance clinician understanding and improve patient outcomes. Methods: A comprehensive literature review was conducted, synthesizing data on the etiology, classification, and epidemiology of Cushing's syndrome. The review categorized Cushing's syndrome into ACTH-dependent and ACTH-independent forms, highlighting diagnostic challenges and therapeutic strategies, including surgical, medical, and radiation options. Results: The findings reveal that Cushing's syndrome predominantly arises from either endogenous factors (e.g., pituitary adenomas, ectopic ACTH production) or exogenous glucocorticoid use. ACTH-dependent Cushing's disease accounts for the majority of cases, particularly in women aged 25-40. The review also identifies key diagnostic tools, including biochemical tests and imaging studies, and discusses the importance of recognizing both overt and subtle clinical presentations. Conclusion: Cushing's syndrome remains a complex endocrine disorder requiring a multifaceted approach for accurate diagnosis and effective management.
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