Yes I am concerned. Breast problems can occur in both males and females. Problems usually present at a more advanced nature in males than in women.
The potential causes range from a systemic infection with a microorganism that causes a granulomatous reaction in lymph nodes, autoimmune problems such as sarcoidosis, and certain types of malignancies including lymphoma and yes male breast cancer
You need to see your primary care doctor. They will refer you for a CT of the Chest, Abdomen and Pelvis as well as blood work and possibly a mammogram (depending on their physical exam findings - yes men with suspected breast involvement do get mammograms).
Only after those tests would it be able to be determine what the cause is, how to treat etc.
If you want to discuss this more please feel free. If you accept my answer, please choose accept / 3-5 rating.
If you want to discuss this more please feel free. If you accept my answer, please choose accept / 3-5 rating