10 results
Reversed Halo Sign - Infectious and Non-Infectious Differential Diagnosis
Definition: A focal rounded area of GGO surrounded
Reversed Halo Sign ... Differential Diagnosis ... Dermatomyositis, Lung ... , Pulmonary embolism ... #Sign #Infectious
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... polymicrobial infection ... Lung abscess ... Abscess Diagnosis ... Blood cultures • CXR
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... - Differential Diagnosis ... • CT: Halo sign ... factor • May cause ... #Infections #HIV
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
Causes of Pleural Effusion - Differential Diagnosis Algorithm
Transudate - Hydrostatic
 • Congestive heart failure
 • Constrictive
Pneumonectomy • Trapped lung ... Urinothorax Exudate - Infectious ... : • Pneumonia ... • Subphrenic abscess ... • Pulmonary embolism
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
pathognomonic signs ... common, Aortic root abscess ... large infarct - Infectious ... #Endocarditis #comparison ... #table
Ear Pain (Otalgia) - Differential Diagnosis Framework

Primary Otalgia 
 - Pain that originates from the ear
- Differential Diagnosis ... Streptococcus pneumoniae ... (caries, abscess ... subdural hematoma, lung ... #differential #diagnosis
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
- Differential Diagnosis ... Causes: • Still's ... Brucellosis Faget's Sign ... Brucellosis • Liver or lung ... #Differential #Diagnosis
Amiodarone Induced Lung Toxicity Summary

Who?
• 5% of patients
• Dose ≥ 400 mg per day

How?  Possible
Amiodarone Induced Lung ... Direct cytotoxic lung ... • Amiodarone half ... failure - Infectious ... - Pulmonary embolism
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
Tenderness → Consider infectious ... papules and Gottron sign ... ) • Shawl sign ... of aspiration pneumonia ... statins - probably caused