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Here are the most common examples of these four patterns on a chest x-ray (click image
- Multifocal ill-defined ... interstitial opacities ... opacities Nodule or mass ... Nodule - Multiple Masses ... Clinical #Radiology #CXR
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
Interstitial Lung ... Bird fanciers' lung ... ILD caused by inhalation ... lung disease (RB-ILD ... differential #pulmonary #causes
Causes of Interstitial Lung Disease - Differential Diagnosis Algorithm
Idiopathic Interstitial Pneumonia
 • (UIP) Usual Interstitial Pneumonia
Causes of Interstitial ... Lung Disease - ... Metastases to lung ... #Lung #Diseases ... #ILD #Causes #Differential
Whenever you see an area of increased density within the lung, it must be the result
or multifocal ill-defined ... opacities. 2- Interstitial ... . 3- Nodule or mass ... Diagnosis #Radiology #CXR ... #Consolidation
COVID-19 Findings on Lung ultrasound
 - Thickened pleural line
 - B lines (multifocal, discrete, or confluent)
19 Findings on Lung ... Small (centomeric) consolidations ... and translobar consolidation ... infection; alveolar interstitial ... GrauSegura #COVID19 #Lung
Based on the images alone, it is usually not possible to determine the cause of the
determine the cause ... this is nodular interstitial ... lung disease, that ... Diagnosis #Radiology #CXR ... #Causes #RadiologyAssistant
ILD of Known Cause - Differential Diagnosis
Exposure:
 • Occupational: Asbestosis, Silicosis, Hypersensitivity, Pneumonitis
 • Treatment Related:
ILD of Known Cause ... BrighamChiefs #ILD ... #Causes #Differential ... #Diagnosis #interstitial ... #lung #disease
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Unknown • 6-7 cases ... - Imaging: • CXR ... opacities, Unilateral consolidation ... • HRCT: patchy consolidation ... BOOP #pulmonary #ILD
Lobar pneumonia
On the chest x-ray there is an ill-defined area of increased density in the right
x-ray there is an ill-defined ... weight loss or long ... of chronic consolidation ... lobar pneumonia caused ... Clinical #Radiology #CXR
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
lung disease comes ... lung disease and ... On a CXR the most ... seen and in many cases ... Radiology #Pulmonary #CXR