Endobronchial epithelial papilloma associated with a foreign body.

Noninvasive papillary endobronchial lesions are among the least common of pulmonary neoplasms. We describe the occurrence of a papillary squamous tumor surrounding an aspirated sunflower seed foreign body, and briefly review the subject of endobronchial papilloma. This tumor should be a red flag for the presence of a foreign body, and foreign body removal may obviate the need for thoracotomy.