Exploring airway pathology with POCUS

One of my colleagues suspected a subtle presentation of airway problems. A CXR was ordered which suggested something pushing the trachea over to the right. A previous CXR was similar but not as pronounced. A CT showed a mass, looking like a Thyroid Colloid Cyst. As predicted, it was pushing on the trachea.

I was thinking if it was from the thyroid, might POCUS offer anything?

I couldn’t see or palpate anything in the neck (perhaps due to body habitus).

POCUS easily showed a large thyroid cyst on the left.

When I pointed the probe down towards the mediastinum, I could see the same cyst extending downward, becoming the cyst visible on the CT.