14 results
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
on Chest CT 1. ... Consolidation 7. ... Organizing Pneumonia ... #ChestCT #radiology ... #CTChest #diagnosis
Etiologies of pulmonary infections according to CT-scan patterns. 
CMV cytomegalovirus, GM galactomannan, HSV herpes simplex virus,
- Viral pneumonia ... Aspergillosis CONSOLIDATION ... #Lung #Infections ... #Differential #Diagnosis ... #Chest
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
that affects the distal ... - Imaging: • CXR ... and GG pattern, ... • HRCT: patchy consolidation ... - Diagnosis:
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
- Chest Radiology ... throughout the lungs ... #Chest #Radiology ... #pulmonary #CXR ... #clinical #CT
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
- Differential Diagnosis ... • CT: Halo sign ... dyspnea • Lobar consolidation ... Cytopenias VIRAL ... #differential #diagnosis
Based on the images alone, it is usually not possible to determine the cause of the
between these chest ... Lobar pneumonia ... nodular interstitial lung ... #Clinical #Diagnosis ... #Radiology #CXR
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... Patterns - Differential ... Diagnosis Framework ... Hemorrhage, Edema • Consolidation ... #CT #Patterns #
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
CT demonstrates ... can suggest the diagnosis ... which are probably consolidations ... #Clinical #Radiology ... #CXR #CTChest #
Cavitation - Pneumonia
In virulent pyogenic infections an abscess may form within the consolidated lung as a
the consolidated lung ... is not seen in viral ... resolution of the consolidation ... #Clinical #Radiology ... #CXR #CTChest #
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
failure, COPD, Lung ... Evaluation: Imaging (CXR ... +/- High res CT ... chest scan), CBC ... HIVAIDS #workup #diagnosis