What Causes Swelling Above Clavicle Bone?
This could be serious so do investigation quickly.
Detailed Answer:
Hello
I have studied your case.
As per your symptoms there is possibility of lymph node involvement leading to swelling over both collar bones.
Lymph node involvement can be due to infection, lymphoma, and malignancy.
I will advise to do blood investigation and FNAC of swelling should be done and lymphangiography.
If required CT scan or PET scan for early diagnosis and treatment.
Continue your treatment for RA this can be associated with RA, but you will need to rule out other possibilities.
This could be serious so do investigation quickly.
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Wishing you good health.
Take care.