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Crazy Paving is a combination of ground glass opacity with superimposed septal thickening (5).
It was first
Crazy Paving is ... heart failure, ARDS ... , AIP) #Clinical ... #Radiology #CTChest ... #CrazyPaving #Crazy
Radiographic appearances of pulmonary diseases in HIV/AIDS Patients
 • Diffuse Interstitial Infiltrates: Pneumocystis jirovecii, M.tuberculosis, Histoplasma
diseases in HIV/AIDS ... disease, Pulmonary alveolar ... proteinosis • ... ; Lung cancer, Kaposi ... diagnosis #chestCT #radiology
Differential diagnosis of Lymphangitic Carcinomatosis. 
On the left multiple diseases showing septal thickening:
1. Lymphangitic carcinomatosis: irregular
to filling of alveoli ... distribution of the alveolar ... Alveolar proteinosis ... septal thickening (crazy ... #Clinical #Radiology
On the left a patient with both septal thickening and ground glass opacity in a patchy
findings is called 'crazy ... Crazy paving was ... be specific for alveolar ... proteinosis, but ... #Clinical #Radiology
Key findings in alveolar proteinosis
- Crazy paving pattern: reticular pattern superimposed on ground glass opacification.
- Opacifications
Key findings in alveolar ... proteinosis - Crazy ... typical case of alveolar ... proteinosis with ... #Clinical #Radiology
Alveolar proteinosis is a rare disease characterized by filling of the alveolar spaces with PAS positive
Alveolar proteinosis ... filling of the alveolar ... HRCT pattern (crazy ... fluid (Broncho Alveolar ... #Clinical #Radiology
Notice that even within each lobe there is a gravity dependent difference in density.
This is only
capillary leak like in ARDS ... #Clinical #Radiology ... #CTChest #CHF #Alveolar ... Pulmonary #Edema #AlveolarEdema
Reticular pattern 
1. Lymphangitic carcinomatosis: irregular septal thickening, usually focal or unilateral 50% adenopathy', known carcinoma.
2.
Alveolar proteinosis ... septal thickening (crazy ... #Clinical #Radiology
Acute interstitial pneumonia (AIP, earlier named Hamman Rich Pneumonitis) is a rare idiopathic lung disease characterized
characterized by diffuse alveolar ... distress syndrome (ARDS ... , often with a crazy ... density with a crazy-paving ... #Clinical #Radiology