Tracheobronchmegaly

What it means

Marked widening of the trachea and major bronchi that may be predispose to chronic respiratory tract infection.

Tracheobronchmegaly is typically characterized by atrophy or absence of elastic fibers and thinning of smooth muscle layers in the trachea and main bronchi.

Rare diseases that can present with this1

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category