25 results
Reversed Halo Sign - Infectious and Non-Infectious Differential Diagnosis
Definition: A focal rounded area of GGO surrounded
Reversed Halo Sign ... • Infectious Causes ... Non-Infectious Causes ... Dermatomyositis, Lung ... , Pulmonary embolism
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
- Differential Diagnosis ... • CT: Halo sign ... Legionella: • Nausea ... factor • May cause ... #differential #diagnosis
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
- Lung point ... pleura reflection) Pneumonia ... sliding Pulmonary Embolism ... #differential #diagnosis ... #signs #Lung #POCUS
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... • Most common cause ... : Aspiration pneumonia ... Blood cultures • CXR ... early disease) • CXR
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
can suggest the diagnosis ... feeding vessel sign ... feeding vessel sign ... Clinical #Radiology #CXR ... #CTChest #Septic
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
responses of the lung ... indicates unknown cause ... listed in the table ... #Diagnosis #Radiology ... #Pulmonary #CTChest
Chest Pain - Differential Diagnosis Algorithm
Cardiovascular Causes:
 - Outflow Obstruction
     • Aortic
Diagnosis Algorithm ... Infarction • Stable ... • Pulmonary Embolism ... Parenchymal • Pneumonia ... #Differential #Diagnosis
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
- Differential Diagnosis ... Artery Disease • Stable ... Pulmonary Alveoli • Pneumonia ... • Pulmonary Embolism ... #Algorithm #Causes
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
pathognomonic signs ... is required for diagnosis ... in up to 30% of cases ... #Endocarditis #comparison ... #table
Features That Differentiate Acute Pericarditis from Myocardial Ischemia or Infarction and Pulmonary Embolism

In contrast to the
and Pulmonary Embolism ... life-threatening causes ... Pericarditis #Symptoms #Signs ... #Presentation #comparison ... #Table #Diagnosis