Although gynecomastia is usually bilateral, it can be unilateral.
Pseudogynecomastia ( also called lipomastia ) is characterized by fat deposition without glandular proliferation.
TO SEE appearance of Pseudogynecomastia in x-ray
You can differentiate between true gynecomastia and pseudogynecomastia by a simple test made clinically by having the patient lie on his back with his hands behind his head. The examiner doctor then places a thumb on each side of the breast, and slowly brings the thumbs together. In true gynecomastia, a ridge of glandular tissue will be felt that is symmetrical to the nipple-areolar complex. With pseudogynecomastia, the fingers won't meet until they reach the nipple.
