19 results
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
History: cough, dyspnea ... consolidation and GG pattern ... , cavities • HRCT ... #COP #BOOP #pulmonary ... #ILD #diagnosis
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
COVID-19 Patterns ... Organizing Pneumonia ... #Pulmonary #ChestCT ... #radiology #CTChest ... #diagnosis
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
morphologic findings on HRCT ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... IdiopathicInterstitialPneumonia #ILD ... #Findings #RadiologyAssistant
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
Differential diagnosis ... to look at the pattern ... more than one pattern ... #Pulmonary #CXR ... Differential #Table #RadiologyAssistant
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Causes of Chronic Dyspnea ... - Differential Diagnosis ... Thickening/Masses Chest ... Alveoli • Pneumonia ... Interstitium • ILD
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
- Differential Diagnosis ... • Pleuritic CP ... • CT: Halo sign ... Infections #HIV #AIDS #pulmonary ... #differential #diagnosis
HRCT findings in OP
- Bilateral peripheral consolidations, sharply demarcated.
- Consolidations may be migratory.
- Lesions may show
HRCT findings in ... carcinoma, the diagnosis ... Clinical #Radiology #CTChest ... #Organizing #Pneumonia ... #ILD #RadiologyAssistant
Acute and Chronic Causes of Dyspnea - Differential Diagnosis
Pulmonary/Chest Wall:
 • Acute: Trauma, COPD exacerbation, Asthma
Chronic Causes of Dyspnea ... Pulmonary/Chest ... Acute: Trauma, COPD ... Asthma attack, ILD ... Pleural effusion, Pneumonia
On the left two cases with chronic consolidation. 
There are patchy non-segmental consolidations in a subpleural
The final diagnosis ... the HRCT findings ... will be other signs ... Clinical #Radiology #CTChest ... OrganizingPneumonia #RadiologyAssistant
Alveolar proteinosis is a rare disease characterized by filling of the alveolar spaces with PAS positive
The diagnosis is ... the suggestive HRCT ... pattern (crazy ... dyspnea. - Prognosis ... Clinical #Radiology #CTChest