46 Malignant Primary Adenocarcinoma of the Trachea: A Rare Diagnostic Entity

Primary tracheal tumors are exceedingly rare, accounting for approximately 0.1 \% of all malignancies. They can present with a variety of nonspecific symptoms, which makes them difficult to diagnose and often leads to advanced disease. Squamous cell carcinoma is the most common tracheal tumor (44–63%) followed by adenoid cystic carcinoma (7%-16%) and less commonly encountered histologies (adenocarcinoma, small cell carcinoma, and mucoepidermoid...