9 results
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Nodular pattern ... Hypersensitivity ... pneumonitis: ill ... Hypersensitivity ... #Pattern #Comparison
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
pattern. 1. ... Hypersensitivity ... pneumonitis: ill ... Hypersensitivity ... #Differential #Comparison
Chronic hypersensitivity pneumonitis
The key findings in chronic hypersensitivity pneumonitis are:
Mosaic pattern with areas of ground-glass atenuation
: Mosaic pattern ... shows a mosaic pattern ... hyperaerated secondary nodules ... and secondry nodules ... Clinical #Radiology #CXR
Subacute hypersensitivity pneumonitis
The key findings in the subacute hypersensitivity pneumonitis are:
ill-defined centrilobular nodules of ground-glass opacity
nodules of ground-glass ... opacity (80% of cases ... ) or mosaic pattern ... There are ill-defined ... #Nodular #Subacute
Here are the most common examples of these four patterns on a chest x-ray (click image
of these four patterns ... consolidation - Multifocal ill-defined ... - Multiple Masses ... Clinical #Radiology #CXR ... Consolidation #Patterns
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
- Imaging: • CXR ... consolidation and GG pattern ... irregular lines, nodular ... ’s, Hypersensitivity ... BOOP #pulmonary #ILD
Causes of Interstitial Lung Disease - Differential Diagnosis Algorithm
Idiopathic Interstitial Pneumonia
 • (UIP) Usual Interstitial Pneumonia
Causes of Interstitial ... Metastases to lung as nodules ... Hypersensitivity ... Chronic Radiation Pneumonitis ... Lung #Diseases #ILD
Amiodarone Induced Lung Toxicity Summary

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

How?  Possible
injury • Indirect hypersensitivity ... multiple pulmonary nodules ... • Reticular + Nodular ... Exclude other causes ... Exclusion of other ILDs
Lobar atelectasis or lobar collaps is an important finding on a chest x-ray and has a
The most common causes ... produces only mild ... Diagnosis #Radiology #CXR ... Lobar #Collapse #Patterns ... #Comparison #RadiologyAssistant