Abstract
Proliferation of the glandular tissue of the breast, or gynecomastia, is a frequent condition in men. Often it is a physiological occurrence associated with the age and hormonal status of the patient, but it can develop as a side effect of various medications, or be a symptom of an underlying pathology. Differentiating physiological change from the disease is important when examining a patient with gynecomastia, and malignancy should always be considered and excluded. In this article we discuss the presentation, workup and treatment of a patient with unilateral gynecomastia and give an overview of current treatment guidelines.