448 results
Perilymphatic distribution
Perilymphatic nodules are most commonly seen in sarcoidosis.
They also occur in silicosis, coal-worker's pneumoconiosis and
lymphangitic spread of carcinoma ... #Differential #RadiologyAssistant
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
Broncho-alveolar cell carcinoma ... Comparison #Table #RadiologyAssistant
Hilar and mediastinal lymphadenopathy
In sarcoidosis the common pattern is right paratracheal and bilateral hilar adenopathy ('1-2-3-sign').
In
In lung carcinoma ... #Differential #RadiologyAssistant
Pleural effusion is seen in:
1. Pulmonary edema
2. Lymphangitic spread of carcinoma - often unilateral
3. Tuberculosis
4. Lymphangiomyomatosis
Lymphangitic spread of carcinoma ... #Differential #RadiologyAssistant
Lungcancer
10% of lungcancers cavitate, most commonly squamous cell carcinoma.
Small cell lungcancer does not cavitate.
Bronchoalveolar carcinoma, or
squamous cell carcinoma ... Bronchoalveolar carcinoma ... Cavity #Cavitary #RadiologyAssistant
Diffuse consolidation in bronchoalveolar carcinoma
The chest x-ray shows diffuse consolidation with 'white out' of the left
bronchoalveolar carcinoma ... bronchoalveolar carcinoma ... #Bronchogram #RadiologyAssistant
HRCT findings in OP
- Bilateral peripheral consolidations, sharply demarcated.
- Consolidations may be migratory.
- Lesions may show
DD bronchogenic carcinoma ... bronchoalveolar carcinoma ... Pneumonia #ILD #RadiologyAssistant
It is very important to differentiate between acute consolidation and chronic consolidation, because it will limit
bronchoalveolar carcinoma ... #Differential #RadiologyAssistant
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
bronchoalveolar carcinoma ... OrganizingPneumonia #BOOP #RadiologyAssistant
Differential diagnosis of Lymphangitic Carcinomatosis. 
On the left multiple diseases showing septal thickening:
1. Lymphangitic carcinomatosis: irregular
adenopathy, known carcinoma ... Comparison #Table #RadiologyAssistant