Two Surgical Cases of Pulmonary Mucoepidermoid Carcinoma

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  • Sato Nobuyuki
    Department of Thoracic Surgery, Aomori Prefectural Central Hospital
  • Ishibashi Naoya
    Department of Thoracic Surgery, Aomori Prefectural Central Hospital
  • Abe Koutaro
    Department of Thoracic Surgery, Aomori Prefectural Central Hospital

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  • 肺粘表皮癌の2手術例

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Abstract

<p>Background. Pulmonary mucoepidermoid carcinoma (MEC) is a rare disease, and its prognosis is dependent on its grade. Case 1. A 58-year-old woman underwent a right upper lobectomy for lung adenocarcinoma, however a postoperative pathological report revealed the tumor was low grade MEC. She has been free of recurrence for two years. Case 2. A 35-year-old woman underwent a medical checkup, and a tumor at the left pulmonary hilum was found. This tumor was diagnosed as high grade MEC with lymph node metastasis. A left pneumonectomy was performed. Thereafter, postoperative recurrences were found in bone and cervical lymph nodes. Conclusion. It used to be difficult to diagnose MEC, but recent reports showed almost 60% cases had correct diagnoses by bronchoscopic examination. Moreover about 70% of those diagnosed cases were low grade MEC, that could be cured by complete resection. However, the prognosis of high grade MEC is poor. We need to investigate more effective multimodality treatment for high grade MEC.</p>

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