Abstract
Screening for synchronous pulmonary tumors in patients presenting with squamous cell carcinoma of the head and neck (SCCHN) is important, because detection may alter subsequent management. We conducted a retrospective review, comparing effectiveness of pulmonary screening using thoracic CT or chest X-ray, in 1882 patients presenting with SCCHN. The overall rate of synchronous pulmonary tumors was 4.3%. The number needed to scan, ie, the number of thoracic CTs required to detect 1 pulmonary tumor, is reported for recurrent primary tumors, primary disease load (T and N classification), and individual primary sites. The incidence of pulmonary metastases is related to locoregional disease load while the incidence of bronchogenic carcinoma is sporadic. Although it is possible to propose a pragmatic screening protocol for pulmonary metastases, this is not possible for bronchogenic carcinomas. Therefore, we recommend that thoracic CT is used in all cases to screen for coexistent pulmonary pathology.
Published Version
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