TY - CHAP M1 - Book, Section TI - Gynecomastia A1 - Tannous, Zeina A1 - Avram, Mathew M. A1 - Tsao, Sandy A1 - Avram, Marc R. PY - 2011 T2 - Color Atlas of Cosmetic Dermatology, 2e AB - Gynecomastia is the increased presence of benign glandular tissue, in the form of a firm mass, around the nipple in males (Fig. 57.1). It is accompanied by increased fat deposition. In contrast, increased fat deposition alone, in the absence of glandular proliferation, is known as pseudogynecomastia. It can be bilateral or unilateral. It is common at birth, puberty, middle age, and in elderly adults. Many cases are idiopathic. Multiple precipitating factors exist including hormonal abnormalities, medication, cirrhosis, hypogonadism, testicular tumors, hyperthyroidism, and chronic renal insufficiency. For this reason, in the appropriate clinical setting, the appearance of gynecomastia demands a medical workup. SN - PB - The McGraw-Hill Companies, Inc. CY - New York, NY Y2 - 2024/03/28 UR - dermatology.mhmedical.com/content.aspx?aid=1175823599 ER -