20 results
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
(assumes Room Air ... , Interstitial Lung ... #arterial #pulmonary ... Hypoxia #hypoxemia #differential ... #diagnosis
Diagnosis and Management of Diffuse Alveolar Hemorrhage (DAH)
Blood escaping through the capillary wall into the alveoli,
of DAH: • DAH triad ... : lung opacities ... hemoptysis, anemia • Chest ... CT scan: diffuse ... Management #Pulmonary #Differential
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
CT demonstrates ... lesions than the chest ... can suggest the diagnosis ... abutting the pleura, air-bronchograms ... #Clinical #Radiology
Air Bronchogram Sign on Chest CT
 • Patent airways surrounded by opacified lung
 • DDx: pna,
Air Bronchogram ... Sign on Chest CT ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Polo Mint Sign on Chest CT
 • Partial filling defect in a blood vessel surrounded by
Polo Mint Sign on Chest ... CTPartial filling ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Monod Sign on Chest CT
 • Air surrounding a fungal ball in a preexisting pulmonary cavity
Monod Sign on Chest ... CTAir surrounding ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
Miliary Pattern - Chest ... throughout the lungs ... #Radiology #differential ... #CXR #clinical ... #CT
Air Crescent Sign on Chest CT
 • Crescentic or circumferential rim of radiolucent airspace within a
Air Crescent Sign ... on Chest CT • ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... Lung Abscess - Clinical ... lat decubitus - air ... CT Lung Abscess ... Abscess Differential
ABCs of Lung Ultrasound - A-Lines, B-Lines, Consolidation
A-Profile - Air filled lung does not transmit sound
C-Profile - Filled alveoli ... C-Profile - Collapsed alveoli ... #Ultrasound #POCUS ... #Differential # ... Diagnosis #clinical