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[A case of laryngeal necrosis following concurrent chemoradiotherapy for advanced hypopharyngeal cancer after insertion of a nasogastric tube].

A 62-year-old male with cT4bN2cM0 hypopharyngeal carcinoma with ipsilateral vocal cord fixation was initially treated with concurrent chemoradiotherapy. Since the patient complained of dysphagia caused by mucositis, a nasogastric tube was placed on the day of irradiation with a dose of 20 Gy. Bilateral vocal cord fixation and laryngeal necrosis became evident 3 weeks after the concurrent chemoradiotherapy. He underwent a total pharyngolaryngectomy (neck dissection, and reconstruction with a free jejunal graft) followed by adjuvant chemotherapy. It is highly suspected that the nasogastric tube compressed the mucosa of the post cricoid region, resulting in laryngeal necrosis.