JOURNAL ARTICLE

Pulmonary Carcinosarcoma: A Surveillance, Epidemiology, and End Results (SEER) Analysis

Jennifer L Ersek, James T Symanowski, Yimei Han, Alexander Howard, Kathryn Dumas, William Ahrens, Elyssa Kim, Edward S Kim
Clinical Lung Cancer 2019 July 10
31455596

INTRODUCTION: Pulmonary carcinosarcoma (PC) is a rare malignant neoplasm composed of epithelial and mesenchymal components. It accounts for < 1% of thoracic cancers and is not fully understood. This study examined Surveillance, Epidemiology, and End Results (SEER) data to describe demographic and clinical characteristics of patients with PC and assessed survival outcomes by treatment modality and stage.

PATIENTS AND METHODS: SEER data were reviewed to identify patients diagnosed with primary PC (1973-2012). Overall survival (OS) and disease-specific survival (DSS) were analyzed by univariate/multivariable Cox proportional hazards models and Kaplan-Meier methods.

RESULTS: A total of 411 patients were included. Median age was 67 (range, 24-96) years. Disease stage at the time of initial diagnosis was known for 74.7% of the identified patients (307/411). Of these patients, 23.1% had localized disease. Survival was significantly better for patients with localized disease (OS: 31 vs. 6 months, P < .001; DSS: 54 vs. 8 months, P < .001). Additionally, patients who received surgery alone had significantly improved OS (20 months; P < .001) and DSS (32 months; P < .001) compared to patients who received combined surgery and radiotherapy (OS: 7 months; DSS: 8 months) or radiotherapy alone (OS: 4 months; DSS: 4 months).

CONCLUSION: Treatment with surgery alone resulted in superior survival outcomes compared to other treatment modality combinations, regardless of patient age and disease stage. Within the limitations of this study, providers may wish to consider these findings when devising patient treatment plans.

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