17 results
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. ... Reverse Halo Sign ... Halo Sign 6. ... Consolidation 7.
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
feeding vessel sign ... feeding vessel sign ... which are probably consolidations ... Clinical #Radiology #CXR ... #CTChest #Septic
CT Angiogram Sign on Chest CT
 • Prominent pulm vessels traversing through an area of parenchymal
CT Angiogram Sign ... on Chest CT • ... of parenchymal consolidation ... CTAngiogram #Angiogram #Sign ... #CT #Lung #Pulmonary
Atoll Sign (Reverse-Halo Sign) on Chest CT
 • Central GGO surrounded by a crescentic or circumferential
Atoll Sign (Reverse-Halo ... Sign) on Chest ... circumferential denser consolidation ... Reverse #Halo #Sign ... #CT #Lung #Pulmonary
Good example of 'shred sign' in a patient with fever, cough and shortness of breath. 

This
example of 'shred sign ... This POCUS finding ... /CT imaging. ... eabramsMD #Shred #sign ... #pulmonary
Air Crescent Sign on Chest CT
 • Crescentic or circumferential rim of radiolucent airspace within a
Air Crescent Sign ... on Chest CT • ... a parenchymal consolidation ... Air #Crescent #Sign ... #CT #Lung #Pulmonary
Venn Diagram - Does this patient have pneumonia?
Diagnosis is generally based on three lines of evidence:
infiltrate (e.g., CXR ... , CT, ultrasound ... procalcitonin) - Pulmonary ... symptoms (e.g., dyspnea ... pain) and signs
Rheumatoid arthritis (RA): Extra-articular manifestations
Skin: 
 • Inflammation of skin (esp. over areas of stress) forms
extravasation -> Dyspnea ... pleural effusion on CXR ... cause interstitial lung ... disease/pulmonary ... pathophysiology #signs
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... • Pleuritic chest ... • CT: Halo sign ... • Lobar consolidation ... Infections #HIV #AIDS #pulmonary
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
• Hypoxia • Dyspnea ... Nasal polyps and signs ... centrilobular nodules, or consolidation ... in the adjacent lung ... CT) • Broncho-arterial