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Interact CardioVasc Thorac Surg 2006;5:362-366. doi:10.1510/icvts.2005.125989
© 2006 European Association of Cardio-Thoracic Surgery
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Yukito Ichinose
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Right arrow Lung - cancer

Institutional report - Thoracic general

Prognostic value of the histological subtype in completely resected non-small cell lung cancer

Tatsuro Okamoto*, Riichiroh Maruyama, Ryuichi Suemitsu, Yoshiro Aoki, Hiroshi Wataya, Miyako Kojo and Yukito Ichinose

Department of Thoracic Oncology, National Kyushu Cancer Center, 3-1-1, Notame, Minami-ku, Fukuoka, 811-1395, Japan

*Corresponding author. Tel.: +81-92-541-3231; fax: +81-92-551-4585.

E-mail address: tokamoto{at}nk-cc.go.jp (T. Okamoto).

Non-small cell lung cancer (NSCLC), which includes several different histological subtypes, is usually treated by the same strategy. However, the biological behavior of each cell type appears to be different. We retrospectively reviewed the clinical records of 1119 consecutive NSCLC patients who underwent a complete resection, in order to investigate whether a histological cell type is a powerful prognostic factor. The overall 5- and 10-year survivals of the patients with adenocarcinoma (AD), squamous cell carcinoma (SQ), large cell carcinoma (LA), and adenosquamous cell carcinoma (AS) were 54.2 and 40.2%, 51.6 and 30.3%, 40.9 and 18.7%, and 35.1 and 30.1%, respectively. The AD patients had a significantly better survival than the non-AD patients in Stage I (P=0.0004), whereas the SQ patients had a better survival than the non-SQ patients in Stage II (P=0.018). A multivariate survival analysis indicated the AD patients to have a significantly better survival than the SQ patients in Stage IA (P=0.04), while the SQ patients had a better survival than the AD patients in Stage II (P=0.03). These above observations suggest that the prognosis after complete resection is different between adenocarcinoma and squamous cell carcinoma in Stage IA and II.

Key Words: Non-small cell lung cancer; Adenocarcinoma; Squamous cell carcinoma; Prognosis

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