Radiology Flashcards
(17 cards)
A radiographic approach to arthritis
ABCDES
Alignment : subluxation
Bone proliferation : periosteal reaction, soft tissue calcification
Cartilage : joint space narrowing
Density : bone mineral
Erosions
Soft tissues
Airspace disease produce opacities in the lung that can be described as
Fluffy cloud like and hazy
What is an air bronchogram
Visibility of air in the bronchogram because of surrounding airspace disease
3 Causes of airspace disease
Pneumonia
Pulmonary alveolar edema
Aspiration
Acute alveolar pulmonary edema produces a bilateral perihilar airspace disease described as having
Batwing or angel wing configuration
Aspiration occurs more in what part of the lobe
Right lower lobe because of the caliber and the course of the right lower lobe
Characteristics of airspace disease
- Produce opacities in the lung that can be described as fluffy cloud like and hazy
- The opacities tend to be confluence merging into one another
- The margins of airspace ex are fuzzy and in distinct
- Air bronchograms or the silhouette sign may be present
Characteristics of airspace disease
- Produce opacities in the lung that can be described as fluffy cloud like and hazy
- The opacities tend to be confluence merging into one another
- The margins of airspace ex are fuzzy and in distinct
- Air bronchograms or the silhouette sign may be present
The bibasilar distribution of the disease should raise suspicion of
Aspiration
Interstitial lung disease produce what can be thought of as
Discrete particles of disease
The “particles” of interstitial lung ex is classified into
Reticular
Nodular
Reticulonodular
Reticular interstitial dx is seen in
Sarcoidosis
Nodular interstitial dx is seen in
Thyroid carcinoma
Characteristics of interstitial lung dx
1. They have discrete reticular Nodular or reticulonodular patterns
2. Packets of disease are separated by normal appearing aerated lung
3. Margins of packets of interstitial disease are usually sharp and discrete
4. Disease may be focal or diffusy distributed in the lungs
5. Usually no air bronchograms are present
Four key radiological findings in pulmonary interstitial edema
Fluid in the fissures
Peribronchial cuffing
Pleural effusions
Kerley b lines
Causes of interstitial lung dx (reticular
Pulmonary interstitial edema
Idiopathic pulmonary fibrosis
Rheumatoid lung
Causes of interstitial lung dx (Nodular)
Bronchogenic carcinoma
Metastases to the lung
