69 results
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
COVID-19 Patterns ... CT 1. ... Reverse Halo Sign ... Halo Sign 6. ... ChestCT #radiology #CTChest
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
The fourth pattern ... These include: - Emphysema ... low attenuation pattern ... Radiology #Pulmonary #CTChest ... TractionBronchiectasis #Cysts #Emphysema
Halo Sign on Chest CT
 • SPN or mass surrounded by a circumferential GGO
 • DDx:
Halo Sign on Chest ... CT • SPN or mass ... doi.org/10.1016/j.chest ... .2016.12.033 #Halo #Sign ... #CT #Lung #Pulmonary
Feeding Vessel Sign on Chest CT
 • Distinct pulmonary vessel leading into a lung nodule or
Feeding Vessel Sign ... on Chest CT • ... doi.org/10.1016/j.chest ... Feeding #Vessel #Sign ... #CT #Lung #Pulmonary
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Low Attenuation pattern ... Centrilobular emphysema ... Radiology #HRCT #CTChest ... LowAttenuation #Cystic #Pattern
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... Patterns - Differential ... Attenuation: • Emphysema ... HiRes #HighRes #Chest ... #CT #Patterns #
Signs of Pulmonary Hypertension on Chest CT
 • Main PA is dilated and larger than the
Signs of Pulmonary ... Hypertension on Chest ... CT • Main PA ... Carina crossover sign ... PHTN #ChestCT #CTChest
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Low Attenuation pattern ... Centrilobular emphysema ... Radiology #HRCT #CTChest ... LowAttenuation #Cystic #Pattern
Boerhaave Syndrome 
Postemesis 
Iatrogenic (most common)
Left Posterolateral most common

Mackler's Triad:
Lower Chest Pain
Vomiting
Subcutaneous Emphysema

#Boerhaave #Syndrome #Diagnosis #Signs
Triad: Lower Chest ... Subcutaneous Emphysema ... Syndrome #Diagnosis #Signs
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
: 'signet ring sign ... Centrilobular emphysema ... Diagnosis #Radiology #CTChest