26 results
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
Reverse Halo Sign ... Halo Sign 6. ... Organizing Pneumonia ... #Lung #Pulmonary ... ChestCT #radiology #CTChest
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
On a Chest X-Ray ... On a CXR the most ... on a CXR. ... seen and in many cases ... Diagnosis #Radiology #Pulmonary
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
• CT: Halo sign ... Legionella: • Nausea ... factor • May cause ... reported in 100% of cases ... Infections #HIV #AIDS #pulmonary
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 ... mass - Solitary Pulmonary ... Nodule - Multiple Masses ... Clinical #Radiology #CXR
Venn Diagram - Does this patient have pneumonia?
Diagnosis is generally based on three lines of evidence:
this patient have pneumonia ... infiltrate (e.g., CXR ... procalcitonin) - Pulmonary ... pain) and signs ... #Pneumonia #Venn
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Unknown • 6-7 cases ... - Imaging: • CXR ... consolidation and GG pattern ... , Pulmonary lymphoma ... #COP #BOOP #pulmonary
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 ... caused by streptococcus ... Diagnosis #Radiology #Pulmonary ... #CXR #Consolidation
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
indicates unknown cause ... have specific patterns ... realise, that these patterns ... Diagnosis #Radiology #Pulmonary ... #CTChest #Idiopathic
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
Miliary Pattern ... rarely typical pneumonia ... PulmPEEPs #Miliary #Pattern ... differential #diagnosis #pulmonary ... #CXR #clinical
Based on the images alone, it is usually not possible to determine the cause of the
determine the cause ... and other non-pulmonary ... between these chest ... Lobar pneumonia ... Diagnosis #Radiology #CXR