11 results
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
CT 1. ... ARDS 3. ... Consolidation 7. ... Organizing Pneumonia ... #CTChest #diagnosis
ARDS/VALI progression over the course of 1 week 
 (a) Day 1 - No pathological findings.
some pulmonary consolidations ... involvement, with “white lung ... the differential diagnosis ... #Clinical #Radiology ... #CXR #ChestXRay
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
- Differential Diagnosis ... • CT: Halo sign ... dyspnea • Lobar consolidation ... Infections #HIV #AIDS ... #differential #diagnosis
Etiologies of pulmonary infections according to CT-scan patterns. 
CMV cytomegalovirus, GM galactomannan, HSV herpes simplex virus,
- Viral pneumonia ... Aspergillosis CONSOLIDATION ... Patterns #Pulmonary #Lung ... #Differential #Diagnosis ... #Chest
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
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 #
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
throughout the lungs ... rarely typical pneumonia ... pathogens - Viral ... #CXR #clinical ... #CT
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
Infections in HIV-AIDS ... failure, COPD, Lung ... Evaluation: Imaging (CXR ... +/- High res CT ... HIVAIDS #workup #diagnosis
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 #
Hampton hump is a radiologic sign which consists of a shallow wedge-shaped opacity in the periphery
periphery of the lung ... hump along may aid ... in the diagnosis ... CT angiography. ... #Cardiology #HamptonHump