Please cite this article as: Jaspers GW, Witjes MJ, Groen HJ, Groen H, Rödiger LA, Roodenburg JL. Strategies for patients with newly diagnosed oral squamous cell carcinoma and a positive chest CT. A cohort study on the effects on treatment planning and incidence, European Journal of Surgical Oncology (2010Oncology ( ), doi: 10.1016Oncology ( /j.ejso.2010 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. In 20 (13%) patients chest abnormalities were observed on CT scan of the chest and in 6 (4%) patients malignancy was pathologically confirmed. Both pulmonary second primary tumors and pulmonary metastases were independent of stage of oral malignancy. We found that additional diagnostic procedures did not significantly lengthen the time interval between first consult and start of treatment. The cost of the screening for pulmonary malignancies in the group was € 8.214 per observed pulmonary malignancy.We advocate that CT imaging of the chest should be routinely performed in the diagnostic work up of all patients with a newly discovered SCC of the oral cavity, irrespective of the tumor stage of the oral malignancy.