28 results
Reversed Halo Sign - Infectious and Non-Infectious Differential Diagnosis
Definition: A focal rounded area of GGO surrounded
Reversed Halo Sign ... complete ring of consolidation ... • Infectious Causes ... Dermatomyositis, Lung ... #pulmonary
The PA-film shows a silhouette sign of the left heart border.
Even without looking at the lateral
shows a silhouette sign ... This was a consolidation ... caused by Sterptococcus ... #Clinical #Radiology ... #CXR #Pneumonia
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
pleura reflection) Pneumonia ... : - Consolidation ... cases - Dynamic ... #differential #diagnosis ... #signs #Lung #POCUS
Based on the images alone, it is usually not possible to determine the cause of the
determine the cause ... Lobar pneumonia ... nodular interstitial lung ... #Clinical #Diagnosis ... #Radiology #CXR
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Unknown • 6-7 cases ... - Clinical manifestations ... - Imaging: • CXR ... - Diagnosis: ... #ILD #diagnosis
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 ... Consolidation 7. ... Organizing Pneumonia ... #Pulmonary #ChestCT ... radiology #CTChest #diagnosis
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
Differential diagnosis ... the differential diagnosis ... or peripheral (reversed ... caused by streptococcus ... #Pulmonary #CXR
Batwing
A bilateral perihilar distribution of consolidation is also called a Batwing distribution.
The sparing of the periphery
most typical of pulmonary ... it is seen in pneumonias ... Reverse Batwing ... #Diagnosis #Radiology ... #CXR #Batwing #
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
- Differential Diagnosis ... • CT: Halo sign ... dyspnea • Lobar consolidation ... factor • May cause ... Infections #HIV #AIDS #pulmonary
Lung Findings on Physical Exam
Crackles:
 • Short, discontinuous, sounds mostly heard during inspiration
 • Caused by
Lung Findings on ... edema and pneumonia ... words louder #Lung ... #PhysicalExam #diagnosis ... #signs