Print Departments and specialties Mayo Clinic has one of the largest and most experienced practices in the United States, with campuses in Arizona, Florida and Minnesota. Staff skilled in dozens of specialties work together to ensure quality care and successful recovery. Departments that treat this condition Breast Clinic By Mayo Clinic Staff Request an Appointment at Mayo Clinic Diagnosis & treatment Oct. 02, 2019 Print Share on: FacebookTwitter Related Chest X-rays CT scan Gynecomastia (enlarged male breast tissue) Liposuction Mammogram Mastectomy MRI Ultrasound Show more related content Products & Services Newsletter: Mayo Clinic Health Letter Enlarged breasts in men (gynecomastia)Symptoms & causesDiagnosis & treatmentDoctors & departments Research: It's All About Patients CON-20164022 Patient Care & Health Information Diseases & Conditions Enlarged breasts in men (gynecomastia)