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Ann Thorac Surg 2005;80:340-342
© 2005 The Society of Thoracic Surgeons
a Second Department of Surgery, University of Occupational and Environmental Health, Kitakyushu, Japan
b Department of Pathology, University of Occupational and Environmental Health, Kitakyushu, Japan
Accepted for publication December 29, 2003.
* Address reprint requests to Dr Sugio, Second Department of Surgery, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan (Email: kensugio{at}med.uoeh-u.ac.jp).
A case of pulmonary collision tumor is herein reported. An abnormal shadow was discovered in the right lung of a 53-year-old man. A right upper lobectomy with a mediastinal lymph node dissection was performed. Based on the findings of a postoperative pathologic examination, this tumor was considered to be a collision tumor of large cell carcinoma and adenocarcinoma, as the distribution of each tumor was clearly separated. This case is the first report of a primary pulmonary collision tumor consisting of large cell carcinoma and adenocarcinoma.
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