14 results
Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
pneumonia and UIP ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #Differential #Table ... Central #Peripheral #RadiologyAssistant
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... is seen in: - UIP ... #HRCT #ChestCT ... #Differential #Table ... #Distribution #
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... low attenuation (table ... in many cases UIP ... #Diagnosis #Radiology ... #Differential #RadiologyAssistant
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
cysts (LAM, LIP ... on the basis of HRCT ... findings. ... #Diagnosis #Radiology ... Emphysema #SignetRing #RadiologyAssistant
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
listed in the table ... on HRCT and histology ... of NSIP, UIP, OP ... #Diagnosis #Radiology ... #RadiologyAssistant
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
A HRCT is needed ... to confirm the diagnosis ... #Clinical #Radiology ... #CXR #UIP #Reticular ... #Honeycombing #RadiologyAssistant
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
resolution of the HRCT ... or interstitial lung ... predominance: UIP ... distribution: Hypersensitivity ... bronchiolitis #Diagnosis
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
show very similar HRCT ... findings ... lower zone distribution ... throughout the whole lung ... Fibrosis #Mimic #ILD #RadiologyAssistant
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
densities in both lungs ... The lab-findings ... #Clinical #Radiology ... #CXR #Peripheral ... OrganizingPneumonia #BOOP #RadiologyAssistant
Acute interstitial pneumonia (AIP, earlier named Hamman Rich Pneumonitis) is a rare idiopathic lung disease characterized
rare idiopathic lung ... findings in AIP ... suggestive of the diagnosis ... #Clinical #Radiology ... AcuteInterstitialPneumonia #ILD #RadiologyAssistant