Bronchial Wall Thickening Causes

Bronchial wall thickening (Bronchiectasis) involves a large differential diagnosis. The table below contains a complete list of causes.


For organizational purposes, it is useful to divide it into the three broad categories shown on the left. Within each category, the most common disease entities are shown on the right.


Causes of Bronchiectasis1



Cystic Fibrosis

Kartagener's Syndrome

Alpha-1 Antitrypsin Deficiency


Yellow-Nail Syndrome


Severe Inflammation

(i.e. Tuberculosis)


Toxoplasmosis, Rubella, CMV, Herpes simplex, Syphilis (TORCHES)

Fungal infection



Foreign body aspiration

Bronchial stricture

Airway mass/tumor

External compression


1Table is reprinted with permission from Slotto, J. and Folio, L. (2008). Cystic Fibrosis Chest X-Ray Findings: A Teaching Analog.Military Medicine: International Journal of AMSUS 173(7): xii, xiii.