[Bronchial cancer: how can the anatomic mediastinal extension of the tumor be estimated?].
Determining the precise extension of a bronchial carcinoma is essential to decide the treatment and appreciate the outcome. Computed tomography (CT) remains the reference method for the evaluation of mediastinal invasion by tumor. It seems reasonable to purpose CT for every operable tumor after radio bronchoscopic examination (except for peripheral T1 tumor without contact with the pleura). The place of MRI is not yet definitely established. But one can expect it to be better defined in the years to come because of technical improvement. However MRI could be performed in place of CT or complementary to CT in some cases: tumor of pulmonary apices, tumor in contact with diaphragm cardiac cavities or large mediastinal vessels, suspicion of vertebral invasion. MRI is also indicated first in cases of contra indication to iodine injection. There is no more indication to angiographic examinations for the staging of bronchogenic carcinoma. Other imaging methods have to be evaluated in this field: i.e. esophagoscopy, endovascular, ultrasound or angioscopy.
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Service de Radiologie, Hôpital Antoine-Béclère, Clamart.
D002289:Carcinoma, Non-Small-Cell Lung / Q000473:pathology; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology*; D008479:Mediastinal Neoplasms / Q000473:pathology*; D009361:Neoplasm Invasiveness; D009367:Neoplasm Staging
Cancer bronchique: comment évaluer l'extension anatomique médiastinale de la tumeur?