Do Adolescents with Gynecomastia Require Routine Evaluation by Endocrinology?

Area of Science:

• Pediatric Endocrinology
• Adolescent Medicine
• Clinical Investigation

Background:

• Adolescent gynecomastia is common, but evidence supporting endocrinologic investigations is limited.
• Current practice guidelines for evaluating adolescent gynecomastia often include extensive endocrine testing.
• The diagnostic yield and cost-effectiveness of these investigations are not well-established.

Purpose of the Study:

• To assess the diagnostic yield of endocrinologic investigations in adolescent gynecomastia.
• To inform current clinical practice regarding the evaluation of this condition.
• To determine the cost-effectiveness of endocrine workups for adolescent gynecomastia.

Main Methods:

• A 26-year retrospective review of patients with gynecomastia presenting to endocrinology was conducted.
• Data included clinical metrics, endocrine results, treatments, and costs for 197 patients.
• Analysis focused on identifying secondary causes and the utility of endocrine testing.

Main Results:

• Only 7.6% of patients were diagnosed with secondary gynecomastia, with 1.7% identified through blood work.
• The majority of secondary cases (67%) were linked to exogenous substance use.
• Endocrine evaluation cost $389 per case, with limited diagnostic benefit.

Conclusions:

• Routine endocrinologic workup for adolescent gynecomastia provides little diagnostic value.
• The majority of secondary gynecomastia cases are drug-induced, not requiring extensive endocrine testing.
• Surgery referral may be warranted if gynecomastia persists beyond age 16.