28 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. ... Organizing Pneumonia ... Patterns #Lung #Pulmonary ... #CTChest #diagnosis
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 ... , ultrasound) - ... production, pleuritic chest ... pain) and signs
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 ... oxtvmJe1RmlxFFJpzgymkqdNRFOw%3D%3D #CT ... #Patterns #Pulmonary ... Differential #Diagnosis #Chest
Pertinent Chest x-ray Findings in the Trauma Patient and Implications
Respiratory distress without x-ray findings - Central
Pertinent Chest ... places - Flail chest ... leak after chest ... pattern in the chest ... trauma #diagnosis #signs
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
Associated Lung Ultrasound ... pleura reflection) Pneumonia ... cases - Dynamic air ... Distress Syndrome (ARDS ... #Lung #POCUS #ultrasound
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
(assumes Room Air ... Weakness, Loss of Chest ... Elasticity (flail chest ... , Pneumonia and ... Gradient #alveolar #arterial
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
Monod Sign on Chest CT
 • Air surrounding a fungal ball in a preexisting pulmonary cavity
Monod Sign on Chest ... CTAir surrounding ... a preexisting pulmonary ... .2016.12.033 #Monod #Sign ... #CT #Lung #Pulmonary
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Arrhythmia • Atrial ... Thickening/Masses Chest ... Alveoli • Pneumonia ... • ARDS • COPD ... Vessels • Pulmonary
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
Pulmonary Infections ... in HIV-AIDS Bacterial ... • CD4 < 200: Pulmonary ... CXR +/- High res CT ... chest scan), CBC