13 results
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
19 Patterns of Lung ... CT 1. ... ARDS 3. ... Consolidation 7. ... #Pulmonary #ChestCT
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
abutting the pleura, air-bronchograms ... which are probably consolidations ... Radiology #CXR #CTChest ... #SepticEmboli #Cavity ... #RadiologyAssistant
Consolidation is synonymous with airspace disease.
When you think of the causes of consolidation, think of 'what
UIP, NSIP and long ... Diagnosis #Radiology #Pulmonary ... #CTChest #Consolidation ... #Differential # ... RadiologyAssistant
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
Pneumonia: - Consolidation ... - Supleural Consolidations ... cases - Dynamic air ... Distress Syndrome (ARDS ... #differential #
Monod Sign on Chest CT
 • Air surrounding a fungal ball in a preexisting pulmonary cavity
Monod Sign on Chest ... CTAir surrounding ... a preexisting pulmonary ... cavity • DDx: ... #CT #Lung #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 ... #Crescent #Sign ... #CT #Lung #Pulmonary
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
or an area of consolidation ... the surrounding lung ... without associated pulmonary ... usually contain air ... #Cavity #Cyst #
Differential diagnosis of the reversed halo sign (RHS). AIA, angioinvasive aspergillosis; AIS, adenocarcinoma in situ; COP,
Differential diagnosis ... reversed halo sign ... aspergillosis; AIS ... **Includes cavitary ... lesions, lobular consolidation
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Nasal polyps and signs ... thickening, presence of air-fluid ... centrilobular nodules, or consolidation ... CT) • Broncho-arterial ... #differential #
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
CT: Halo sign ... dyspnea • Lobar consolidation ... fever, cough and cavitary ... Infections #HIV #AIDS ... #pulmonary #differential