19 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 ... Legionellosis, Tuberculosis ... Reverse #Halo #Sign ... #pulmonary
Diffuse consolidation
The most common cause of diffuse consolidation is pulmonary edema due to heart failure.
This is
Diffuse consolidation ... cause of diffuse consolidation ... Look for other signs ... #Diagnosis #Radiology ... #Pulmonary #CXR
Pott's Disease in Tuberculosis - Diagnosis and Management Summary
Epidemiology:
 - Typically from TB endemic areas
 -
cases Clinical Signs ... years - May have signs ... symptoms of active pulmonary ... decreased reflexes Pathophysiology ... tissue damage - CXR
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
(LTBI) Pathophysiology ... • HIV: 2/3 pulmonary ... Diagnosis: Latent ... and Culture • CXR ... #TB #Diagnosis
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
(LTBI) Pathophysiology ... • HIV: 2/3 pulmonary ... Diagnosis: Latent ... and Culture • CXR ... #TB #Diagnosis
Fever in Returning Travelers from Tropical Regions - Frequent Differential Diagnoses
Medical History:
 • Skin exposure to
Frequent Differential Diagnoses ... without localizing signs ... melioidosis, typhoid, pulmonary ... eosinophilia - Tropical pulmonary ... #differential #diagnosis
Reverse Halo Sign
Defined as a central ground class opacity surrounded by a ring of dense consolidation
Differential
Reverse Halo Sign ... ring of dense consolidation ... Differential Diagnosis ... Aspergillosis, Tuberculosis ... Reverse #Halo #Sign
Differential diagnosis of the reversed halo sign (RHS). AIA, angioinvasive aspergillosis; AIS, adenocarcinoma in situ; COP,
Differential diagnosis ... reversed halo sign ... pneumonia; PZ, pulmonary ... lesions, lobular consolidation ... #Diagnosis #Pulmonary
TRALI vs TACO - Transfusion Reactions
TRALI:
 • Epidemiology: 0.1% of transfused patientsl
 • Risk factors: Critical
: 2 hit mechanism ... fluid balance, and CXR ... with pulmonary ... Reactions #hematology #diagnosis ... #comparison #table
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess Pathophysiology ... Blood cultures • CXR ... early disease) • CXR ... residual lesion or is clear ... Lung #Abscess #pulmonary