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The CXR demonstrates a reticular interstitial pattern with a preference at the lung bases.
The HRCT demonstrates
interstitial pattern ... #Clinical #Radiology ... #CXR #UIP #CTChest ... #Reticular #Interstitial ... #Pattern #Honeycombing
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
(LAM, LIP, Langerhans ... histiocytosis) - Bronchiectasis ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... LowAttenuation #Differential
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... The cystic pattern ... UIP can be suspected ... #Diagnosis #Radiology ... #Pattern #Differential
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
UIP UIP is a histologic ... a reticular pattern ... #Clinical #Radiology ... #CXR #UIP #Reticular ... Pattern #Honeycombing
Honeycombing represents the second reticular pattern recognizable on HRCT.
Because of the cystic appearance, honeycombing is also
the second reticular ... pneumonia (UIP) ... #Clinical #Radiology ... #CTChest #Honeycombing ... #UIP #UsualInterstitialPneumonia
The case on the left shows subpleural honeycomb cysts in several contiguous layers.
There is also a
subpleural honeycomb cysts ... Pneumonia (UIP) ... #Clinical #Radiology ... #CTChest #UIP # ... #Honeycombing #
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... bronchiectasis: ... central dot. - LIP ... #Clinical #Diagnosis ... #Radiology #CTChest
HRCT findings in UIP
Honeycombing consisting of multilayered thick-walled cysts.
Architectural distortion with traction bronchiectasis due to fibrosis.
Predominance
HRCT findings in UIP ... Honeycombing consisting ... #Radiology #CTChest ... #UIP #UsualInterstitialPneumonitis ... #Usual #Interstitial
On the left a chest film of a patient with UIP due to IPF.
The findings on
a patient with UIP ... densities caused ... preference also think 'UIP ... #Clinical #Radiology ... UIP #UsualInterstitialPneumonitis
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
Patterns - Differential ... Reticular: • ... Lymphangitic Carcinoma, Interstitial ... Differential #Diagnosis ... #pulmonary #radiology