Abstract
To clarify the patterns of the recurrence and to assess the oncological and functional outcomes after salvage surgery for the patients with structural local recurrence of papillary thyroid cancer (PTC), twenty-five patients who underwent salvage surgery for structural local recurrence of PTC were retrospectively reviewed. Structural recurrences were observed in the tracheal lumen in 5 patients, intraluminal or intramuscular esophagus in 5 patients, trachea, and cricoid cartilage in 9 patients, cricoid and thyroid cartilage in 2 patients, intra-lumen of the larynx in 1 patient and soft tissue around thyroid in 3 patients, respectively. Although all local disease was resected with macroscopically negative margin, 10 patients diagnosed as microscopically positive margin. Major surgical complications occurred in 6 patients, including common carotid artery injury (n = 1), unintentional pharyngeal or esophageal injury (n = 2), recurrent laryngeal nerve paralysis (n = 2), and pharyngeal fistula resulting in common carotid artery rupture (n = 1), and were successfully managed. During the follow-up periods, 6 patients were alive without disease, 15 patients survived with distant metastases and/or locoregional recurrence, and 4 patients died of the disease. While tracheocutaneous fistula remained in 7 patients, the vocal function was preserved in all patients but one who underwent total laryngectomy. Normal oral intake was retained in all patients. In conclusion, although salvage surgery for structural recurrence of PTC has a high risk of complications, it may be worthwhile when macroscopic curative resection is available. The decision should be made considering various factors including curability, risk of surgical procedure, functional outcome, and life expectancy.
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