22 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
The fourth pattern ... on the basis of HRCT ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... Differential #Diagram #Comparison
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
in interstitial lung ... low attenuation (table ... seen and in many cases ... #Diagnosis #Radiology ... #Pulmonary #CXR
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
indicates unknown cause ... listed in the table ... morphologic findings on HRCT ... #Diagnosis #Radiology ... #Pulmonary #CTChest
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
of pulmonary fibrosis ... On a chest X-ray ... A HRCT is needed ... at the lung bases ... #Clinical #Radiology
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
loss, lethargy, fever ... • CT: Halo sign ... • Fever, weight ... factor • May cause ... Infections #HIV #AIDS #pulmonary
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
: • 80% have fever ... decubitus - air fluid level ... CT Lung Abscess ... Intervention: - Fevers ... #Abscess #pulmonary
Reticular pattern 
1. Lymphangitic carcinomatosis: irregular septal thickening, usually focal or unilateral 50% adenopathy', known carcinoma.
2.
Reticular pattern ... Cardiogenic pulmonary ... #Clinical #Radiology ... #HRCT #CTChest ... #Comparison #Table
The distribution of nodules shown on HRCT is the most important factor in making an accurate
In most cases small ... structures of the lung ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... Perilymphatic #Comparison
Stage I - Redistribution
In a normal chest film with the patient standing erect, the pulmonary vessels
are smaller and fewer ... supplying the lung ... non-perfused vessels and causes ... In these cases comparison ... #Clinical #Radiology
Based on the images alone, it is usually not possible to determine the cause of the
determine the cause ... between these chest ... with cough and fever ... nodular interstitial lung ... Clinical #Diagnosis #Radiology