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Metastasis predominantly occurs via the lymphatic system in head and neck tumors. The disturbance of the lymphatic system in the cervical region resulting from neck dissection or radiotherapy may result in unusual patterns of metastasis in patients with recurrent tumors. This is more frequent when the recurrent tumor invades the myocutaneous flap used for the primary reconstruction. We encountered three patients (2 men, 1women) with infraclavicular lymph node metastasis. All were previously treated by surgery, postoperative radiation therapy, and reconstruction with the use of the pectoralis major myocutaneous flap.