48 results
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
CT 1. ... Organizing Pneumonia ... #Lung #Pulmonary ... #ChestCT #radiology ... #CTChest #diagnosis
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
loss, lethargy, fever ... • CT: Halo sign ... • Fever, weight ... be normal • Fever ... Infections #HIV #AIDS #pulmonary
Interstitial pneumonias
An acute reticular pattern is most frequently caused by interstitial edema due to cardiac heart
Interstitial pneumonias ... acute reticular pattern ... PCP Mycoplasma pneumonia ... cough and some fever ... #Clinical #Radiology
Etiologies of pulmonary infections according to CT-scan patterns. 
CMV cytomegalovirus, GM galactomannan, HSV herpes simplex virus,
Etiologies of pulmonary ... infections according to CT-scan ... patterns. ... #Patterns #Pulmonary ... Differential #Diagnosis #Chest
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
High Attenuation pattern ... Chronic eosinophilic pneumonia ... consolidation #Clinical #Radiology ... #HRCT #CTChest ... #Comparison #Table
Venn Diagram - Does this patient have pneumonia?
Diagnosis is generally based on three lines of evidence:
this patient have pneumonia ... infiltrate (e.g., CXR, CT ... Inflammation (e.g., fever ... procalcitonin) - Pulmonary ... #Pneumonia #Venn
Signs of Pulmonary Hypertension on Chest CT
 • Main PA is dilated and larger than the
Signs of Pulmonary ... CT • Main PA ... midline at the level ... PHTN #ChestCT #CTChest ... #Radiology #cardiology
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
High Attenuation pattern ... Cryptogenic organizing pneumonia ... #Clinical #Radiology ... #HRCT #CTChest ... #Comparison #Table
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... Patterns - Differential ... Hypersensitivity Pneumonia ... #CT #Patterns # ... #radiology
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
The fourth pattern ... low attenuation pattern ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... Differential #Diagram #Comparison