19 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 ... Reverse Halo Sign ... ARDS 3. ... Halo Sign 6. ... #Pulmonary #ChestCT
Halo Sign on Chest CT
 • SPN or mass surrounded by a circumferential GGO
 • DDx:
Halo Sign on Chest ... .2016.12.033 #Halo ... #Sign #CT #Lung ... #Pulmonary #diagnosis ... #radiology #clinical
Atoll Sign (Reverse-Halo Sign) on Chest CT
 • Central GGO surrounded by a crescentic or circumferential
Atoll Sign (Reverse-Halo ... Sign) on Chest ... #Sign #CT #Lung ... #Pulmonary #diagnosis ... #radiology #clinical
Heart failure with Reduced Ejection Fraction (HFrEF)
Clinical Presentation
1. Typical symptoms: dyspnea, orthopnea paroxysmal noctumal dyspnea, fatigue,
Fraction (HFrEF) Clinical ... More Specific Signs ... Less Specific Signs ... Chest x-ray: signs ... → no signs of CXR
Tram Track Sign on Chest CT
 • Parallel, non-tapering airways, extending to the lung periphery.
 •
Tram Track Sign ... bronchiectasis, CF ... #Tram #Track #Sign ... #CT #Lung #Pulmonary ... diagnosis #radiology #clinical
Stage III - Alveolar edema
This stage is characterized by continued fluid leakage into the interstitium, which
position Obstructive lung ... The following signs ... #Clinical #Radiology ... #CXR #CHF #Alveolar ... #Pulmonary #Edema
Air Crescent Sign on Chest CT
 • Crescentic or circumferential rim of radiolucent airspace within a
Air Crescent Sign ... consolidation or nodular ... Air #Crescent #Sign ... #CT #Lung #Pulmonary ... diagnosis #radiology #clinical
Crazy Paving on Chest CT
 • Thickened interlobular septa in a background of diffuse GGO's.
 •
Crazy Paving on Chest ... pna, pulm hge, ARDS ... Crazy #Paving #Sign ... #CT #Lung #Pulmonary ... diagnosis #radiology #clinical
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
• CT: Halo sign ... consolidation or nodular ... phagocytic function of alveolar ... Infections #HIV #AIDS ... #pulmonary #differential
Based on the images alone, it is usually not possible to determine the cause of the
chronic illness, clinical ... between these chest ... filling of the alveoli ... interstitial lung ... #Radiology #CXR