Likely not cancer: Asymmetry in muscle mass in the chest wall (pectoralis) can be explained by inequality in pressure exerted by the upper arm while doing isotonic or isometric exercises . (cancer can be diagnosed only by biopsy) go see your dr for any concerns. Take care!
Answered 12/10/2013
5.2k views
Get checked: You may be describing nothing more than having one pec major muscle bigger than the other, and chest wall cancers in a young man are very uncommon. But if you feel you have an unexplained mass lesion, show it to your physician on your next visit.
Answered 3/30/2013
5.2k views
A doctor has provided 1 answer
2 doctors weighed in across 2 answers
3 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question