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Based on the images alone, it is usually not possible to determine the cause of the
determine the cause ... considered, like acute ... between these chest ... Organizing pneumonia (OP ... #Causes #RadiologyAssistant
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
lobar pneumonia caused ... called cryptogenic (COP ... The old name is BOOP ... Diagnosis #Radiology #Pulmonary ... Differential #Table #RadiologyAssistant
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
pneumonia • formerly BOOP ... Unknown • 6-7 cases ... • HRCT: patchy consolidation ... - No specific lab ... #BOOP #pulmonary
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
multiple ill-defined masses ... The lab-findings ... organizing pneumonia (OP ... also known as BOOP ... #RadiologyAssistant
Acute interstitial pneumonia (AIP, earlier named Hamman Rich Pneumonitis) is a rare idiopathic lung disease characterized
Acute interstitial ... distress syndrome (ARDS ... appearance like in the case ... Clinical #Radiology #CTChest ... AcuteInterstitialPneumonia #ILD #RadiologyAssistant
Lung infarction
The radiographic features of acute pulmonary thromboembolism are insensitive and nonspecific.
The most common radiographic findings
radiographic features of acute ... are insensitive ... In most cases of ... The peripheral consolidation ... Lung #Infarction #RadiologyAssistant
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Less common since cART ... dyspnea • Lobar consolidation ... factor • May cause ... Infections #HIV #AIDS ... #pulmonary #differential
Amiodarone Induced Lung Toxicity Summary

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

How?  Possible
Acutely (hours ... organizing pneumonia, ARDS ... toxicity (e.g., acute ... LDH • ↑ ESR, CRP ... • Favorable in case