Nodule at the distal end of left subclavian artery, consider lymph node enlargement, fibroma, chondroma, etc. 1. Enlarged lymph nodes: common causes include lymphadenitis, which may be caused by infection and can be eliminated by applying anti-infective drugs such as penicillin. There is also the possibility of lymph node metastasis of malignant tumors, which need to be clearly diagnosed by pathological biopsy, and chemotherapy or radiotherapy can be taken for the primary tumors. 2. Fibroma: benign swelling with clear boundary, activity and no pressure pain, which can be clearly diagnosed by color ultrasonography and generally resected by surgery. 3. Chondroma: connected with bone, hard texture, no mobility, usually can be removed by surgery. Nodule at the distal end of the left subclavian artery, need to go to the hospital to clarify the cause of the disease, for the cause of the treatment.