Pleomorphic adenoma and severe tracheal obstruction

Pleomorphic adenoma of the trachea in an 8-year-old boy: a case report

“…Although a malignant PA in the trachea has been reported previously in a child [7], PAs in this location are usually benign [8]. These tracheal lesions almost always present with signs and symptoms owing to airway obstruction such as cough, sputum production, repeated pulmonary infections, dyspnea, wheezing, stridor, and hoarseness.…”

Pleomorphic Adenoma of the Subglottis Mistreated as Chronic Obstructive Pulmonary Disease, Report of a Case

“…1) To our knowledge, few patients with pleomorphic adenoma of the trachea have been previously reported in the literature. [2][3][4] The clinical differential diagnosis may include various tumors, such as leiomyoma, osteochondroma, adenoid cystic carcinoma and squamous cell carcinoma. The majority of pleomorphic adenomas in the trachea are benign and slow growing.…”