13 results
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
lung disease comes ... On a Chest X-Ray ... lung disease and ... Diagnosis #Radiology #Pulmonary ... #CXR #Interstitial
On the left a chest film of a patient with UIP due to IPF.
The findings on
volume loss and fibrotic ... changes in the basal lung ... reticulation with a lower lobe ... Clinical #Radiology #CXR ... UsualInterstitialPneumonitis #Usual #Interstitial
Rheumatoid arthritis (RA): Extra-articular manifestations
Skin: 
 • Inflammation of skin (esp. over areas of stress) forms
Ulcers, Livedo reticularis ... pleural effusion on CXR ... tends to cause interstitial ... lung disease/pulmonary ... fibrosis (mechanism
Progressive Massive Fibrosis on Chest X-Ray
In a construction worker presenting with shortness of breath.
Progressive Massive Fibrosis
on Chest X-Ray ... is a chronic interstitial ... lung disease with ... benign, upper lobe ... #Chest #XRay #CXR
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
histologic pattern of pulmonary ... fibrosis. ... On a chest X-ray ... at the lung bases ... #Interstitial #
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
Thickening of the lung ... fluid, fibrous ... lung disease, it ... pulmonary edema ... #HRCT #CTChest
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Left Shunt - Anatomic ... Embolism, Obstructive Lung ... Disease, Interstitial ... Fibrosis, Interstitial ... Lung Disease
Amiodarone Induced Lung Toxicity Summary

Who?
• 5% of patients
• Dose ≥ 400 mg per day

How?  Possible
Amiodarone Induced Lung ... starting amiodarone treatment ... glass opacities • Reticular ... ground glass or reticular ... macrophages Treatment
Pleuroparenchymal Fibroelastosis (PPFE) on Chest CT
47 M with idiopathic pleuroparenchymal fibroelastosis. Typical imaging findings:
- Upper lobe
findings: - Upper lobe ... subpleural and pleural fibrosis ... Rare - GVHD, lung ... radiology #clinical #pulmonary ... #CXR
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
fibrotic lesions ... Progression: • Upper lobe ... and Culture • CXR ... Tuberculosis Treatment ... disease • Check CXR