CTICasesTracheal Adenoid Cystic Carcinoma
Imaging findings
Lateral chest radiograph demonstrates a discrete, circumscribed soft-tissue mass projecting over the tracheal lumen at the level of the aortic arch. CT confirms a polypoid, lobulated mass arising from the tracheal wall causing severe luminal narrowing, with longitudinal/perineural extension along the tracheal cartilage.
Key takeaways
Adenoid cystic carcinoma is a salivary gland-type tumor that represents the second most common primary tracheal malignancy. It characteristically affects younger, non-smoking patients, shows significant longitudinal submucosal/perineural spread, and is prone to local recurrence at surgical margins, making careful preoperative CT planning and long-term surveillance essential.
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