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Here are the most common examples of these four patterns on a chest x-ray (click image
of these four patterns ... consolidation - Diffuse ... - Reticular interstitial ... Nodule - Multiple Masses ... Atelectasis #Diagnosis
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... low attenuation (table ... is reticular. ... seen and in many cases ... #Diagnosis #Radiology
Whenever you see an area of increased density within the lung, it must be the result
resulting in lobar, diffuse ... or multifocal ill-defined ... opacities. 2- Interstitial ... fine or coarse reticular ... #Diagnosis #Radiology
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
The table summarizes ... to look at the pattern ... more than one pattern ... lobar pneumonia caused ... #Differential #Table
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
indicates unknown cause ... listed in the table ... have specific patterns ... #Diagnosis #Radiology ... IdiopathicInterstitialPneumonia #ILD
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Causes of Chronic ... - Differential Diagnosis ... Neoplasm Pulmonary Interstitium ... • ILD • CHF ... #Algorithm #Causes
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Unknown • 6-7 cases ... consolidation and GG pattern ... Pulmonary lymphoma, Diffuse ... BOOP #pulmonary #ILD ... #diagnosis #management
Amiodarone Induced Lung Toxicity Summary

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

How?  Possible
(e.g., chronic interstitial ... • Patchy or diffuse ... pneumonitis Diagnosis ... Exclude other causes ... Exclusion of other ILDs
Acute interstitial pneumonia (AIP, earlier named Hamman Rich Pneumonitis) is a rare idiopathic lung disease characterized
Acute interstitial ... characterized by diffuse ... The histologic pattern ... suggestive of the diagnosis ... AcuteInterstitialPneumonia #ILD
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... inflammatory lesions-interstitial ... - (C-ANCA) pattern ... - (P-ANCA) pattern ... #rheumatology #classification