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| | eMedicine - Pancoast Tumor : Article by Melanie Guerrero, MD |
 | | Staging of Pancoast tumor involves the tumor, node, and metastasis (TNM) classification in which T indicates site and size of the primary tumor, N is related to nodal involvement according to site, and M indicates the presence or absence of distant metastasis. |
 | | Degree of Confidence: In the early stages, Pancoast tumors are difficult to detect on PA chest radiographs because of the difficulty in interpreting overlying shadows at the apices. |
 | | Degree of Confidence: In an older study of 31 patients with superior pulmonary sulcus tumors (Heelan, 1989), CT had a sensitivity of 60% and a specificity of 65%, with an overall accuracy of 63% in the evaluation of the extent of disease. |
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