31 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
or air-filled lesions ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... LowAttenuation #Differential ... #Diagram #Comparison
Radiographic Features of Pulmonary Diseases
 - Pneumonia
 - Atelectasis
 - Emphysema
 - Pneumothorax
 - Effusion
 -
#Diseases #Radiology ... #Patterns #Lung ... #CXR #XRay #ChestCT ... #Differential # ... Diagnosis
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
Pulmonary Infections ... failure, COPD, Lung ... +/- High res CT ... #workup #diagnosis ... #evaluation #differential
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
toxo IgG • CNS PCR ... • 80% with lung ... Infectious: ... #Brain #differential ... #radiology #neurology
CAVITY – a useful mnemonic for the causes of a cavitating lung mass.

C = cancer
embolus I = infection ... - bronchogenic cyst ... #Diagnosis # ... #Differential # ... Lung #Pulmonary
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... in interstitial lung ... is interstitial lung ... #Diagnosis #Radiology ... #Pulmonary #CXR
Etiologies of pulmonary infections according to CT-scan patterns. 
CMV cytomegalovirus, GM galactomannan, HSV herpes simplex virus,
Etiologies of pulmonary ... virus NODULAR LESIONS ... #Lung #Infections ... ComputedTomography #Differential ... #Diagnosis #Chest
Radiologists use many terms to describe areas of decreased density or lucencies within the lung, like
describe a chest X-ray ... visible wall #CXR ... #Lucency #Differential ... #Lung #Pulmonary ... #Diagnosis #Radiology
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
throughout the lungs ... #differential # ... diagnosis #pulmonary ... #CXR #clinical ... #CT
Lung Nodule - Differential Diagnosis Algorithm
Nodule on > 2 Years Without a Change in Size:
 •
Lung Nodule - Differential ... • Bronchogenic Cyst ... Metastases ("cannonball lesions ... Breast, Testicle) Infection ... #Causes #Pulmonary