18 results
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
on HRCT Most of ... disease comes from HRCT ... On HRCT there are ... low attenuation (table ... #Pulmonary #CXR
Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
and cardiogenic pulmonary ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #Differential #Table
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
- Aspiration - Pulmonary ... edema #Diagnosis ... #Radiology #Pulmonary ... #HRCT #ChestCT ... #Differential #Table
Figure 3 HRCT-LUS correlation in normal lung, pulmonary congestion, rheumatoid lung disease, idiopathic pulmonary fibrosis.
Notes: (A)
Figure 3 HRCT-LUS ... #Clinical #Diagnosis ... #HRCT #POCUS #Lung ... #Correlation #Table ... #ILD #Findings
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
on the basis of HRCT ... findings. ... #Diagnosis #Radiology ... #Pulmonary #CTChest
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
listed in the table ... of morphologic findings ... on HRCT and histology ... #Diagnosis #Radiology ... #Pulmonary #CTChest
Erythrocytosis - Polycythemia Differential Diagnosis Algorithm

Elevated Hemoglobin:
 • Males: Hb > 16.5 g/dL/HCT ≥ 49%
 •
Polycythemia Differential Diagnosis ... Hb > 16.5 g/dL/HCT ... : Hb > 16 g/dL/HCT ... Hypoxia-driven: Cardiac/pulmonary ... #Algorithm #hematology
Reticular pattern 
1. Lymphangitic carcinomatosis: irregular septal thickening, usually focal or unilateral 50% adenopathy', known carcinoma.
2.
Cardiogenic pulmonary ... edema: incidental finding ... in HRCT, smooth ... Clinical #Radiology #HRCT ... Pattern #Comparison #Table
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
histologic pattern of pulmonary ... A HRCT is needed ... to confirm the diagnosis ... Here a CXR with ... HRCT demonstrated
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
interpretation of HRCT ... there additional findings ... bronchiectasis) #Diagnosis ... #Radiology #Pulmonary ... #HRCT #CTChest