14 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 ... Findings on Chest ... CT 1. ... Organizing Pneumonia ... #radiology #CTChest
Feeding Vessel Sign on Chest CT
 • Distinct pulmonary vessel leading into a lung nodule or
Vessel Sign on Chest ... CT • Distinct ... , pulm AVM, GPA ... #Vessel #Sign #CT ... #diagnosis #radiology
Halo Sign on Chest CT
 • SPN or mass surrounded by a circumferential GGO
 • DDx:
Halo Sign on Chest ... CT • SPN or mass ... mueormycosis, GPA ... #Halo #Sign #CT ... #diagnosis #radiology
Radiation Dose to Adults from Common Imaging Examinations
ABDOMINAL REGION
 - Computed Tomography (CT) — Abdomen and
6 mSv 2 years CHEST ... ) — Chest 7 mSv ... ) — Lung Cancer ... #PatientInfo #Radiology ... #Nuclear #Comparison
Estimated Medical Radiation Doses for 5 Year-Old Child

3-view ankle	0.0015 mSv	1/14th CXRs
2-view chest	0.02 mSv	1 CXRs
Anteroposterior and lateral
14th CXRs 2-view chest ... mSv 200 CXRs Chest ... #PatientInfo #Radiology ... Radiation #Doses #Imaging ... #Nuclear #Comparison
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
Radiology • Miliary ... throughout the lungs ... rarely typical pneumonia ... #Radiology #differential ... CXR #clinical #CT
Pleuroparenchymal Fibroelastosis (PPFE) on Chest CT
47 M with idiopathic pleuroparenchymal fibroelastosis. Typical imaging findings:
- Upper lobe
Fibroelastosis (PPFE) on Chest ... CT 47 M with idiopathic ... Typical imaging ... Rare - GVHD, lung ... #radiology #clinical
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
Streptococcus Grp ... failure, COPD, Lung ... Evaluation: Imaging ... CXR +/- High res CT ... chest scan), CBC
Cheerio Sign (Open Bronchus Sign) on Chest CT
 • Pulmonary nodule with a central lucency
 •
Bronchus Sign) on Chest ... CT • Pulmonary ... and metastatic lung ... rheumatoid nodules, GPA ... #diagnosis #radiology
Atoll Sign (Reverse-Halo Sign) on Chest CT
 • Central GGO surrounded by a crescentic or circumferential
Reverse-Halo Sign) on Chest ... CT • Central GGO ... IFI, PJP, LG, GPA ... #Lung #Pulmonary ... #diagnosis #radiology