13 results
Mosaic Attenuation on Chest CT
 • Variable attenuation seen on a chest CT in a lobular
Attenuation on Chest ... attenuation seen on a chest ... BO, CTEPH, PJP, CEP ... , HP, COP https ... #Lung #Pulmonary
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
Findings on Chest ... CT 1. ... Organizing Pneumonia ... #Pulmonary #ChestCT ... #radiology #CTChest
Atoll Sign (Reverse-Halo Sign) on Chest CT
 • Central GGO surrounded by a crescentic or circumferential
Reverse-Halo Sign) on Chest ... CT • Central GGO ... consolidation • DDx: COP ... Reverse #Halo #Sign #CT ... #Lung #Pulmonary
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
• Labs: CBC, cr ... , C3, C4, anti-CCP ... • CXR (diffuse ... high resolution chest ... CT • Bronchoscopy
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
heart failure, COPD ... , Lung cancer, Primary ... Evaluation: Imaging (CXR ... +/- High res CT ... chest scan), CBC
Based on the images alone, it is usually not possible to determine the cause of the
between these chest ... Organizing pneumonia ... (OP) - multiple ... nodular interstitial lung ... Diagnosis #Radiology #CXR
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Loss of weight • Chest ... obstruction • COPD ... Physical stigmata of cor ... high-resolution chest ... Laboratory: • ANA, RF, CCP
It is very important to differentiate between acute consolidation and chronic consolidation, because it will limit
- Lung neoplasms ... diseases like organizing ... pneumonia (OP) ... Diagnosis #Radiology #Pulmonary ... #CXR #Consolidation
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
necrosis (7-14 days later ... disease: Pleuritic chest ... level seen • Chest ... CT Lung Abscess ... treatment until the chest
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
• Pleuritic CP ... • Pleuritic chest ... Lymphadenopathy, Chest ... breath, Fatigue, Chest ... Pneumonia: • Chest