11 results
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
Lung Findings on Chest ... CT 1. ... Bilateral Peripheral ... Organizing Pneumonia ... #Lung #Pulmonary
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Pneumonia (COP) ... - Imaging: • CXR ... consolidation and GG pattern ... #Pneumonia #COP ... ILD #diagnosis #management
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... Hypersensitivity Pneumonia, COP ... Sarcoidosis, NSIP, COP ... HiRes #HighRes #Chest ... #CT #Patterns #
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
Pulmonary Infections ... heart failure, COPD ... 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
and other non-pulmonary ... between these chest ... Organizing pneumonia ... (OP) - multiple ... Diagnosis #Radiology #CXR
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Loss of weight • Chest ... Physical stigmata of cor ... high-resolution chest ... CT) • Broncho-arterial ... Laboratory: • ANA, RF, CCP
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
chest to evaluate ... typically seen on chest ... CT ... • IF staining patterns ... differential #diagnosis #management
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
Community Acquired Pneumonia (CAP) - Diagnosis and Management

Pneumonia Signs/Symptoms:
 • Confusion/disorientation (LR + 1.9)
 • Cough
Diagnosis and Management ... • Pleuritic chest ... infiltrate by chest ... radiograph or CT ... #treatment #Pulmonary