Combined diagnostic imaging of a male breast lesion.

The case of a male patient with gynecomastia of the left mammary gland is discussed. The differential diagnosis was considered in relation to other possible benign and malignant lesions where there is swelling of the mammary gland in men. US was the examination of first choice. To complete the study of the diagnostic pattern, mammography was also performed. The definitive diagnosis was true nodular gynecomastia caused by chronic liver disease.