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The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
- Lung cysts (LAM ... basis of HRCT findings ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... Differential #Diagram #Comparison
On the left three different patients with lung cysts.
From left to right: Lymphangiomyomatosis, LIP and Langerhans
#Clinical #Diagnosis ... #Radiology #CTChest ... #Cystic #Comparison ... #LAM #LIP #Histiocytosis ... #RadiologyAssistant
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... Cystic LCH: - LAM ... #Radiology #CTChest ... #Differential #Comparison ... #Table #RadiologyAssistant
There is a hydropneumothorax.
Notice the air-fluid level (blue arrow).
The upper lobe is still attached to the
attached to the chest ... is a possible diagnosis ... #Clinical #Radiology ... #CXR #Pneumothorax ... #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... about imaging findings ... based on the x-ray findings ... #Diagnosis #Radiology ... #Differential #RadiologyAssistant
Stage I - Redistribution
In a normal chest film with the patient standing erect, the pulmonary vessels
In these cases comparison ... during a period of CHF ... #Clinical #Radiology ... #CXR #CHF #Cephalization ... Redistribution #RadiologyAssistant
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
the differential diagnosis ... The lab-findings ... #Clinical #Radiology ... #CXR #Peripheral ... OrganizingPneumonia #BOOP #RadiologyAssistant
Lobar atelectasis or lobar collaps is an important finding on a chest x-ray and has a
on a chest x-ray ... #Diagnosis #Radiology ... #CXR #Lobar #Collapse ... #Patterns #Comparison ... #RadiologyAssistant
Pleural effusion is bilateral in 70% of cases of CHF.
When unilateral, it is slightly more often
PA image as a meniscus ... seen on a supine chest ... #Clinical #Radiology ... #CXR #CHF #Pleural ... PleuralEffusion #RadiologyAssistant
Based on the images alone, it is usually not possible to determine the cause of the
non-pulmonary findings ... between these chest ... #Clinical #Diagnosis ... #Radiology #CXR ... Consolidation #Causes #RadiologyAssistant