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According to these results from the Spanish Group of Lung Metastases of Colo-Rectal Cancer, the combination of these four variables-disease-free interval, carcinoembryonic antigen level, laterality, and thoracic lymph node involvement-constitutes the first-choice survival causal model based on the clinical and pathologic factors most frequently referenced in literature.

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Differences between the radiologic and pathologic findings were documented in 1 of every 5 patients. The correlation was very accurate in patients with single radiologic nodules. However, half of the patients with more nodules showed discrepancies.

Inflammatory pseudotumors have been given diverse--no fewer than 19--names in the literature. The most frequent localization is in the lung, the gastrointestinal tract, and salivary glands. The case presented here at the subglottic level is exceptional. Although the intraoperative diagnosis is not easy, the prognosis is usually good. Malignant degenerations have not been described. In those cases that cannot be operated on or that extend into the mediastinum, radiotherapy is indicated.

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