Fibrosing
Mediastinitis Involving Airway
Radiologic
Findings
Angiography
and follow-up CT after 3 years
Brief Discussion
A
rare benign disorder characterized by chronic inflammation and fibrosis
of mediastinal soft tissues
Causes : histoplasmosis, tuberculosis, other chronic infections, drug, radiation therapy, autoimmune disease, idiopathic
Two patterns of fibrosing mediastinitis : focal and diffuse
The focal type : a localized, calcified mass in the paratracheal or subcarinal regions of the mediastinum or in the pulmonary hila
The diffuse type : a diffusely infiltrating, often noncalcified mass that affects multiple mediastinal compartments
cause compression and obliteration of vessels, airways, and the esophagus and result in a variety of functional and radiologic manifestations