A case of peripheral pulmonary papilloma with myasthenia gravis complicated by thymoma

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  • Tachi Hidekazu
    Department of Thoracic Surgery, National Center for Geriatrics and Gerontology
  • Shibata Kazuo
    Department of Thoracic Surgery, National Center for Geriatrics and Gerontology
  • Sano Masaaki
    Department of Thoracic Surgery, National Center for Geriatrics and Gerontology
  • Nakamae Katsumi
    Department of Thoracic Surgery, National Center for Geriatrics and Gerontology

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Other Title
  • 重症筋無力症合併胸腺腫に併存した肺乳頭腫の１例

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Abstract

We present a rare case of solitary pulmonary papilloma. A 74-year-old woman consulted our hospital because of blepharoptosis. Chest CT and MRI demonstrated a tumor in the thymus and a small mass lesion in the lower division of the right lung. We performed extended thymothymectomy and partial resection of the right lower lobe. On postoperative pathologic examination, the tumor in the thymus was diagnosed as thymoma of type B, and the nodule of the lung was mixed squamous cell and glandular papilloma. The postoperative course was excellent, without any complications. Peripheral pulmonary papilloma is rare, with only eight cases being reported in the literature. We have to consider treatment with or without surgery because it is difficult to diagnose the lesion as benign or malignant on preoperative examination. Furthermore, we should strictly observe the postoperative course because papilloma has the possibility of becoming malignant.

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