17 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. ... Reverse Halo Sign ... Organizing Pneumonia ... Patterns #Lung #Pulmonary
Etiologies of pulmonary infections according to CT-scan patterns. 
CMV cytomegalovirus, GM galactomannan, HSV herpes simplex virus,
Etiologies of pulmonary ... infections according ... to CT-scan patterns ... #Lung #Infections ... Differential #Diagnosis #Chest
Venn Diagram - Does this patient have pneumonia?
Diagnosis is generally based on three lines of evidence:
evidence of a chest ... infiltrate (e.g., CXR, CT ... production, pleuritic chest ... pain) and signs ... #Pneumonia #Venn
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
Miliary Pattern - Chest ... diffuse inhalational injury ... rarely typical pneumonia ... Miliary #Pattern #Chest ... CXR #clinical #CT
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
• Pleuritic chest ... • CT: Halo sign ... Lymphadenopathy, Chest ... breath, Fatigue, Chest ... : • Chest pain
Chest Pain - Differential Diagnosis Algorithm
Cardiovascular Causes:
 - Outflow Obstruction
     • Aortic
Chest Pain - Differential ... Embolism (chest ... Hypertension - Chest ... Parenchymal • Pneumonia ... • Muscular Injury
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... Edema, Hemorrhage, Pneumonia ... Hypersensitivity Pneumonia ... HiRes #HighRes #Chest ... #CT #Patterns #
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
Pulmonary Infections ... identified, Strep pneumoniae ... (Mycoplasma pneumoniae ... CXR +/- High res CT ... chest scan), CBC
Broncholithiasis - Differential Diagnosis Framework

 • Also known as: Lung stones, pulmoliths, pneumoliths, bronchial calculi
 •
patients), • Chest ... Diagnosis: • Chest ... Xray - Chest radiography ... the bronchus • Chest ... CT • Bronchoscopy
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
bronchial wall injury ... Loss of weight • Chest ... Nasal polyps and signs ... high-resolution chest ... CT) • Broncho-arterial