Hi, thanks for writing to HCM.
Well, If I were your treating Doctor for this case of hard painless bump inside armpit, I would come up with three possibilities, these include:
1.
lymph nodes due to some local chronic or acute infection or even malignant diseases in elderly people!
2. The second possibility is of benign and simple conditions like
lipoma or
neurofibroma or ectopic mammary tissue; there is nothing to worry about these!
3. The last possibility is of sebaceous
cyst or some other cysts like branchial cyst or lymphatic cysts ! Nothing to worry about these also!
I suggest you to go for an FNAC and
ultrasound of the lumps for confirmation and to relieve your concerns!
Hope this answers your question. If you have additional questions or follow up questions then please do not hesitate in writing to us. I will be happy to answer your questions.
Wishing you good health.