Dr. Gerald Diaz @GeraldMD
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Board Certified Internal Medicine Hospitalist, GrepMed Editor in Chief πŸ‡΅πŸ‡­ πŸ‡ΊπŸ‡Έ - Sign up for an account to like, bookmark and upload images to contribute to our community platform. Follow us on IG: https://www.instagram.com/grepmed/ | Twitter: https://twitter.com/grepmeded/
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Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
low attenuation (table ... On a Chest X-Ray ... seen and in many cases ... UIP can be suspected ... #RadiologyAssistant
The CXR demonstrates a reticular interstitial pattern with a preference at the lung bases.
The HRCT demonstrates
interstitial pattern ... preference at the lung bases ... Radiology #CXR #UIP ... #CTChest #Reticular ... TractionBronchiectasis #RadiologyAssistant
Here are the most common examples of these four patterns on a chest x-ray (click image
of these four patterns ... on a chest x-ray ... - Reticular interstitial ... Nodule - Multiple Masses ... #RadiologyAssistant
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
On a chest X-ray ... a reticular pattern ... Here a CXR with a reticular ... #Reticular #Interstitial ... #RadiologyAssistant
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
pattern The algorithm ... bronchovascular interstitium ... Pulmonary #HRCT #CTChest ... #NodularPattern ... #RadiologyAssistant
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
indicates unknown cause ... listed in the table ... findings of NSIP, UIP ... Radiology #Pulmonary #CTChest ... ILD #Findings #RadiologyAssistant
On the left a chest film of a patient with UIP due to IPF.
The findings on
honeycombing comprises reticular ... densities caused ... #Usual #Interstitial ... #Pneumonitis #Reticular ... #ILD #RadiologyAssistant
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
cells results in a pattern ... of reticular opacities ... differential diagnosis (Table ... Pulmonary #HRCT #CTChest ... #Differential #RadiologyAssistant
Honeycombing represents the second reticular pattern recognizable on HRCT.
Because of the cystic appearance, honeycombing is also
represents the second reticular ... pattern recognizable ... feature of usual interstitial ... Clinical #Radiology #CTChest ... UsualInterstitialPneumonia #RadiologyAssistant
Cystic versus Reticular
It can be difficult to determine whether we are dealing with a reticular pattern
pattern. ... In many of such cases ... Radiology #CXR #CTChest ... #Cystic #Interstitial ... LangerhansCellHistiocytosis #LCH #RadiologyAssistant