What causes chest pain and lump on breast of a child?
Patient: My 5 year old son has been complaining of chest pains when he breathes deep breaths and I found a hard boney lump on his left breast, when I touch it he does not complain that it hurts but it is obviously a lump. He has not been hurt in the chest area but the lump is worrisome, what could it be? Doctor: Hello. I just read through your question. The lump on his left breast could be a lymph node. these typically swell in the presence of infection. They are usually not worrisome. The more concerning thing is the chest with breathing. This could indicate a mild infection in the lungs. if so, it can be treated with antibiotic. I recommend consulting with your doctor so that he can be examined, the correct  diagnosis made, and the appropriate treatment plan implemented.