• Cancer · Oct 2012

    Primary pulmonary lymphoepithelioma-like carcinoma: fifty-two patients with long-term follow-up.

    • Ying Liang, Liang Wang, Yujia Zhu, Yongbin Lin, Hui Liu, Huilan Rao, Guangchuan Xu, and Tiehua Rong.
    • Department of Medical Oncology, Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong, People's Republic of China.
    • Cancer. 2012 Oct 1; 118 (19): 4748-58.

    BackgroundPulmonary lymphoepithelioma-like carcinoma (LELC) is a rare kind of cancer.MethodsIn this study, the authors evaluated 52 patients with pulmonary LELC who had long-term follow-up. Clinical characteristics, tumor markers, epidermal growth factor receptor (EGFR) mutation status, treatments, and outcomes were analyzed.ResultsPulmonary LELC mostly affected young, nonsmoking patients. Most patients were in early or locally advanced stages and received multimodality treatment. Serum levels of neuron-specific enolase and cytokeratin 19 fragment 21-1 were elevated in 11 of 20 patients and 10 of 16 patients, respectively. Mutational analysis of EGFR was done in 11 patients, and all were wild type. The median overall survival (OS) for all the patients was not reached, and the 2-year and 5-year OS rate was 88% and 62%, respectively. The patients with early tumor stage, normal serum lactate dehydrogenase level, normal serum albumin level, without lymph node metastasis, and those who underwent complete resection had significantly better OS (P < .05); and the serum albumin level was an independent prognostic factor in a Cox regression model (P = .005). For all patients who underwent complete resection, whether or not they received adjuvant chemotherapy did not affect OS (P > .05); whereas, for patients with stage IIIA disease who underwent complete resection, adjuvant chemotherapy was correlated with a significantly better prognosis (P < .05).ConclusionsPulmonary LELC obviously is a distinct entity of lung cancer that has a better prognosis, because patients with LELC can receive multimodality treatment, and LELC has biologic behavior similar to that of nasopharyngeal carcinoma. The current results indicated that future collaborative efforts are needed to determine the optimal treatment methods for this uncommon malignancy.Copyright © 2012 American Cancer Society.

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