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The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
The fourth pattern ... , LIP, Langerhans ... low attenuation pattern ... #Diagnosis #Radiology ... #Pulmonary #CTChest
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
The cystic pattern ... in many cases UIP ... #Diagnosis #Radiology ... #Pulmonary #CXR ... Pattern #Differential
On the left a chest film of a 19 year old patient with Langerhans cell histiocytosis.
The
The dominant findig ... is a reticular patern ... recognized that this pattern ... #Clinical #Radiology ... #CXR #CTChest #
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
the dominant HR-pattern ... , cystic) Where ... bronchiectasis) #Diagnosis #Radiology ... #Pulmonary #HRCT ... #Algorithm #ILD
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
or an area of consolidation ... associated pulmonary ... #Clinical #Diagnosis ... #Radiology #CTChest ... Emphysema #Comparison
Acute interstitial pneumonia (AIP, earlier named Hamman Rich Pneumonitis) is a rare idiopathic lung disease characterized
pneumonia (AIP, ... The histologic pattern ... the diagnosis AIP ... #Clinical #Radiology ... #CTChest #AIP #
On the left a smoker with RB-ILD with subtle HRCT-findings.
The dominant pattern is ground glass opacification.
Additional
The dominant pattern ... are paraseptal emphysema ... #Clinical #Radiology ... #CTChest #RBILD ... #RadiologyAssistant
On the left a patient who is treated with cytotoxic drugs for a hematologic malignancy.
The radiographic
The radiographic findings ... patients with a UIP ... pattern or NSIP ... pattern seen in ... #Clinical #Radiology
Authors: Mark M. Ramzy, DO, EMT-P (@MarkRamzyDO, EM Resident Physician, Drexel University, Department of Emergency Medicine)
Vital signs: BP ... physical exam findings ... x-ray (CXR), try ... radiograph pattern ... #Radiology #CTChest