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Vol.46 No.7 contents | Japanese/English |
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- Case Report -
A Case of Lung Metastasis from Colon Cancer Presenting as a Solitary Cystic Lesion
Yasuki Hachisuka1, Masashi Uomoto1, Akihisa Akamune2Department of 1Thoracic Surgery, 2Radiology, Matsuyama Shimin Hospital, Japan
Background. Cavitation in metastatic lung tumors is rare, compared with primary lung cancer. It is also sometimes difficult to differentiate from benign lung cyst by chest CT. We report a case of lung metastasis from colon cancer presenting as a solitary cystic lesion. Case. A 50-year-old man underwent right hemicolectomy for cecal cancer in April 2003. He was followed up by the department of gastroenterological surgery in our hospital after adjuvant chemotherapy. In January 2006 chest CT showed a 1.5-cm solitary cystic lesion with a slightly thickened wall in the left upper lung. Retrospective evaluation of chest CT revealed a minute cystic lesion at the same site in the left upper lung in February 2005. Partial pulmonary resection for biopsy by video-assisted thoracoscopic surgery was performed in February 2006 because of the growing cystic lesion on chest CT. Pathological findings showed a metastatic lung tumor from cecal cancer. Conclusion. Close follow up is recommended for atypical forms of solitary lung cysts and the possibility of metastatic lung tumor should be kept in mind.
key words: Metastatic lung tumor, Colon cancer, Lung cyst, Cavity
Received: June 29, 2006
Accepted: September 8, 2006
JJLC 46 (7): 799-802, 2006
