Small-cell cancer presenting as a tracheal polyp: a case report and review of the literature.

Primary tracheal tumors are rare. Malignant tracheal polyps constitute the majority, with very few case reports of small-cell cancer in the literature. Staging of these tumors follows the lung cancer TNM staging system, with little evidence-based guidance for their management. We report a case of small-cell cancer presenting as a tracheal polyp and review the related literature.