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. ... ARDS 3. ... #ChestCT #radiology ... #CTChest #diagnosis
Halo Sign on Chest CT
 • SPN or mass surrounded by a circumferential GGO
 • DDx:
Halo Sign on Chest ... CT • SPN or mass ... #Sign #CT #Lung ... #Pulmonary #diagnosis ... #radiology #clinical
Atoll Sign (Reverse-Halo Sign) on Chest CT
 • Central GGO surrounded by a crescentic or circumferential
Sign (Reverse-Halo ... Sign) on Chest ... CT • Central GGO ... #Pulmonary #diagnosis ... #radiology #clinical
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
consistent with pulmonary ... be present on a chest ... computed tomographic (CT ... Definition #Criteria #Diagnosis ... #CriticalCare
Crazy Paving on Chest CT
 • Thickened interlobular septa in a background of diffuse GGO's.
 •
Crazy Paving on Chest ... CT • Thickened ... pna, pulm hge, ARDS ... #Lung #Pulmonary ... #diagnosis #radiology
Hampton hump is a radiologic sign which consists of a shallow wedge-shaped opacity in the periphery
may aid in the diagnosis ... confirmed with chest ... CT angiography. ... EmergencyMedicine #CriticalCare ... #Radiology #Cardiology
TRALI Diagnostic Criteria
TRALI type 1 - Patients who have no risk factors for ARDS and meet
evidence of bilateral pulmonary ... on imaging (eg. chest ... chest CT, or ultrasound ... #Criteria #pulmonary ... #criticalcare
Amiodarone Induced Lung Toxicity Summary

Who?
• 5% of patients
• Dose ≥ 400 mg per day

How?  Possible
• Amiodarone half ... starting amiodarone treatment ... organizing pneumonia, ARDS ... Pleuritic chest ... reticular opacities on chest
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 ... Pneumonia: • Chest
Summary of Oncologic Emergencies

Neutropenic fever:
- Fever + ANC < 500 → start cefepime ± vancomycin (if
suspected) - CT ... chest; CT abdomen ... interventional radiology ... renal failure, pulmonary ... Oncology #HemeOnc #Diagnosis