What Causes Pea-sized Lump On Collar Bone?
Histologic diagnosis required to be certain
Detailed Answer:
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I appreciate your concern
The lump needs to be examined. If there is suspicion regarding its consistency then it needs to be biopsied. Even if there is no suspicion on physical exam, one cannot rule out a serious cause such as a malignant cause based alone on physically palpating the lump or node. Treatment and further management options depend on making a histologic diagnosis via biopsy.
Wishing you best of health
Thanks
Please consult your doctor before deciding on any further course of action.
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Dr. M.S. Khalil