Differentiating Polycystic Ovary Syndrome from Adrenal Disorders

Area of Science:

• Endocrinology
• Reproductive Medicine
• Internal Medicine

Background:

• Polycystic ovary syndrome (PCOS) is a common hyperandrogenic disorder.
• PCOS shares symptoms with other conditions like virilizing tumors, non-classical congenital adrenal hyperplasia (NCAH), hyperprolactinemia, and Cushing's syndrome.
• Accurate diagnosis is essential to differentiate PCOS from adrenal-originated androgen excess.

Purpose of the Study:

• To review the pathophysiology of androgen excess from adrenal and ovarian origins.
• To outline conditions causing androgen excess.
• To facilitate the differential diagnosis of PCOS from adrenal disorders.

Main Methods:

• Review of existing literature on PCOS and adrenal androgen excess disorders.
• Discussion of diagnostic criteria and differential diagnostic approaches.
• Highlighting key hormonal tests for differentiation.

Main Results:

• Shared clinical features between PCOS and other hyperandrogenic disorders necessitate careful evaluation.
• Hormonal testing, including basal levels and dynamic tests like the dexamethasone suppression test and 17-OH progesterone measurement, are critical.
• Rapidly progressive hirsutism may indicate androgen-secreting adrenocortical carcinoma.

Conclusions:

• Distinguishing PCOS from adrenal androgen excess disorders is a critical step in diagnosis.
• Appropriate medical history, clinical examination, and targeted hormonal investigations are indispensable.
• This review aids clinicians in differentiating PCOS from specific adrenal conditions.