Metastatic Tumors to the Trachea

Secondary involvement of the trachea mostly occurs as direct invasion from adjacent organs, such as the larynx, thyroid (Figures 3-35, 3-36, 3-37 [Color Plate 5]), esophagus, or mediastinal structures, and is rarely due to metastasis (Figure 3-38 [Color Plate 5]). This is in contrast to the bronchial tree, which more commonly receives metastases from distant primaries. All published tracheal metastases consist of carcinomas and melanomas, and no sarcoma has been reported, although the latter has been recognized as a form of bronchial metastasis.

Table 3-1 shows the demographic data and types of the 14 published cases of tracheal metastasis.21,22,61-71, Carcinomas of the breast and colon and cutaneous melanoma were the most common

Table 3-1 Reported Cases of Metastases to the Trachea


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