15 results
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
can suggest the diagnosis ... #Clinical #Radiology ... #CXR #CTChest # ... #SepticEmboli #Cavity ... #RadiologyAssistant
Cavitation - Pneumonia
In virulent pyogenic infections an abscess may form within the consolidated lung as a
coughed up, a cavity ... #Clinical #Radiology ... #CXR #CTChest # ... Cavity #Pneumonia ... CavitaryPneumonia #RadiologyAssistant
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... - Differential Diagnosis ... • CT: Halo sign ... fever, cough and cavitary ... #differential #diagnosis
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... - Differential Diagnosis ... , COP, Chronic Eos ... #CT #Patterns # ... #pulmonary #radiology
HRCT findings in OP
- Bilateral peripheral consolidations, sharply demarcated.
- Consolidations may be migratory.
- Lesions may show
such as lymphoma, infection ... carcinoma, the diagnosis ... #Clinical #Radiology ... #CTChest #COP # ... #ILD #RadiologyAssistant
It is very important to differentiate between acute consolidation and chronic consolidation, because it will limit
- Chronic post-infection ... (OP) or chronic ... #Diagnosis #Radiology ... #Pulmonary #CXR ... #Differential #RadiologyAssistant
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
heart failure, COPD ... Evaluation: Imaging (CXR ... +/- High res CT ... chest scan), CBC ... HIVAIDS #workup #diagnosis
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
This patient had ... (OP) also known ... #Clinical #Radiology ... #CXR #Peripheral ... OrganizingPneumonia #BOOP #RadiologyAssistant
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
Differential Diagnosis ... Nocardia, zoonotic infections ... rarely typical pneumonia ... #CXR #clinical ... #CT
Differential diagnosis of the reversed halo sign (RHS). AIA, angioinvasive aspergillosis; AIS, adenocarcinoma in situ; COP,
Differential diagnosis ... reversed halo sign ... adenocarcinoma in situ; COP ... **Includes cavitary ... #Radiology #RHS