Brief Answer:
lump

Detailed Answer:
Hello and thank you for your question.
Male breast cancer is rare but certainly happens. In most men it is easier to detect than in women because men tend to have less breast tissue so lumps are easier to spot. Any man finding a lump or bump around the nipples in the breast tissue should have it checked by a doctor
Risks for male breast cancer include family history of breast cancer, exposure to estrogen and exposure to radiation.
Like breast cancer in women it is very treatable with a high cure rate.
Please let me know if you have further questions
Regards,
Dr. Robinosn

---

Brief Answer:
possible but not likely

Detailed Answer:
Hello and thanks for the follow up.
It could be a small skin cancer. That is more likely than a breast cancer but you need to let a doctor look at it. It could also be just some form of dermatitis causing skin irritation.
Most skin cancers are pretty benign and easy to treat. Don't ignore it though, make sure you see a doctor for an exam soon
Best to you,
Dr. Robinson

---