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
in interstitial lung ... : reticular, nodular ... low attenuation (table ... pattern on a CXR ... Diagnosis #Radiology #Pulmonary
Here are the most common examples of these four patterns on a chest x-ray (click image
of these four patterns ... consolidation - Diffuse ... Interstitial - Reticular ... mass - Solitary Pulmonary ... Consolidation #Patterns
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
is a histologic pattern ... of pulmonary fibrosis ... at the lung bases ... a reticular pattern ... at the lung bases
Miliary Pattern - Chest Radiology
 β€’ Miliary opacities are scattered, small (1 -4 mm) nodules
 β€’
Miliary Pattern ... small (1 -4 mm) nodules ... throughout the lungs ... PulmPEEPs #Miliary #Pattern ... #CT
Whenever you see an area of increased density within the lung, it must be the result
of these four patterns ... resulting in lobar, diffuse ... fine or coarse reticular ... Diagnosis #Radiology #CXR ... Consolidation #Patterns
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
to look at the pattern ... more than one pattern ... lobar pneumonia caused ... Diagnosis #Radiology #Pulmonary ... #CXR #Consolidation
COVID-19 Chest CT - Case 4

Main aspects of the image: multiple opacities in the glass and
COVID-19 Chest CT ... at times with a nodular ... periphery of two lungs ... a multilobular pattern ... Reticular opacities
β–Ί
Progressive Massive Fibrosis aka Complicated Silicosis.
Silicosis is a fibrotic lung disease caused by inhalation of crystalline
is a fibrotic lung ... disease caused ... coalescence of the nodules ... Calcification (seen in CT ... typical eggshell pattern
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
nodules, asthma ... Other tests: β€’ CT ... Goodpasture's cause ... sparing of the lung ... β€’ IF staining patterns
Algorithm for Diagnosis of Diffuse Cystic Lung Disease (DCLD)
Round, smooth cysts with normal lung parenchyma in
Algorithm for Diagnosis ... cysts along with nodules ... LCDD, SS Cyst pattern ... Disease #DCLD #pulmonary ... #Algorithm #Diagnosis