23 results
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 ... of Lung Findings ... Organizing Pneumonia ... ChestCT #radiology #CTChest ... #diagnosis
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
Halo Sign on Chest CT
 • SPN or mass surrounded by a circumferential GGO
 • DDx:
Halo Sign on Chest ... CT • SPN or mass ... #CT #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
can suggest the diagnosis ... feeding vessel sign ... feeding vessel sign ... #CXR #CTChest # ... #SepticEmboli #Cavity
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
- Clinical manifestations ... - Imaging: • CXR ... - Diagnosis: ... ANA, RF, CCP, CPK ... pulmonary #ILD #diagnosis
Cavitation - Pneumonia
In virulent pyogenic infections an abscess may form within the consolidated lung as a
the consolidated lung ... coughed up, a cavity ... #Clinical #Radiology ... #CXR #CTChest # ... Cavity #Pneumonia
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... for Klebsiella pneumonia ... Lung Abscess - Clinical ... Blood cultures • CXR ... early disease) • CXR
Monod Sign on Chest CT
 • Air surrounding a fungal ball in a preexisting pulmonary cavity
Monod Sign on Chest ... preexisting pulmonary cavity ... #CT #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
identified, Strep pneumoniae ... failure, COPD, Lung ... Evaluation: Imaging (CXR ... /- High res CT chest ... HIVAIDS #workup #diagnosis
Typical COVID19 chest x-ray versus normal. The image on the right shows multi-focal patchy airspace opacities.
Typical COVID19 ... image are the lungs ... The "stuff" is pneumonia ... #ChestXRay #CXR ... #Clinical #SARSCoV2