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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Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
Algorithm for nodular ... pattern The algorithm ... Radiology #Pulmonary #HRCT ... #CTChest #NodularPattern ... #Nodular #Pattern
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... on HRCT Most of ... reticular, nodular ... low attenuation (table ... #Differential #
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
pattern. 1. ... #Clinical #Diagnosis ... #Pattern #NodularPattern ... #Differential # ... Comparison #Table
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Nodular pattern ... #Clinical #Radiology ... #HRCT #CTChest ... #Nodular #Pattern ... #Comparison #Table
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
Nodular pattern( ... #Clinical #Radiology ... #HRCT #CTChest ... #Nodular #Pattern ... #Comparison #Table
The distribution of nodules shown on HRCT is the most important factor in making an accurate
nodules shown on HRCT ... pattern. ... Radiology #Pulmonary #HRCT ... #NodularPattern ... #Nodular #Pattern
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Low Attenuation pattern ... #Clinical #Radiology ... #HRCT #CTChest ... LowAttenuation #Cystic #Pattern ... #Comparison #Table
Perilymphatic distribution
Perilymphatic nodules are most commonly seen in sarcoidosis.
They also occur in silicosis, coal-worker's pneumoconiosis and
the overlap in differential ... nodules and the nodular ... the reticular pattern ... Radiology #Pulmonary #HRCT ... #Differential #
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
High Attenuation pattern ... #Clinical #Radiology ... #HRCT #CTChest ... HighAttenuation #Pattern ... #Comparison #Table
Sarcoidosis
In this case the chest x-ray shows subtle findings that could be described as fine reticulation.
In
In many cases a HRCT ... The HRCT - not shown ... #Clinical #Radiology ... #Sarcoidosis #Nodular ... #Interstitial #Pattern