14 results
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Pneumonia (COP) ... • Secondary OP ... - Imaging: • CXR ... Anti-dsDNA, ANCA COP ... #Pneumonia #COP
HRCT findings in OP
- Bilateral peripheral consolidations, sharply demarcated.
- Consolidations may be migratory.
- Lesions may show
HRCT findings in OP ... of OP. ... carcinoma, the diagnosis ... Clinical #Radiology #CTChest ... #COP #Cryptogenic
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
pneumonia (OP) ... OP is organizing ... called cryptogenic (COP ... The old name is BOOP ... #Pulmonary #CXR
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
Findings on Chest ... Consolidation 7. ... Organizing Pneumonia ... ChestCT #radiology #CTChest ... #diagnosis
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
densities in both lungs ... of chronic consolidation ... (OP) also known ... as BOOP. ... Clinical #Radiology #CXR
It is very important to differentiate between acute consolidation and chronic consolidation, because it will limit
- Lung neoplasms ... diseases like organizing ... pneumonia (OP) ... proteinaceous material ... #Pulmonary #CXR
Based on the images alone, it is usually not possible to determine the cause of the
between these chest ... Organizing pneumonia ... (OP) - multiple ... #Clinical #Diagnosis ... #Radiology #CXR
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
heart failure, COPD ... , Lung cancer, Primary ... Evaluation: Imaging (CXR ... /- High res CT chest ... HIVAIDS #workup #diagnosis
Atoll Sign (Reverse-Halo Sign) on Chest CT
 • Central GGO surrounded by a crescentic or circumferential
Reverse-Halo Sign) on Chest ... circumferential denser consolidation ... • DDx: COP, IFI ... Halo #Sign #CT #Lung ... #Pulmonary #diagnosis
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Differential Diagnosis ... anti-GBM ab, ANA, C3, C4 ... , anti-CCPCXR ... high resolution chest ... #differential #diagnosis