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Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
and cardiogenic pulmonary ... Peripheral distribution ... Diagnosis #Radiology #Pulmonary ... Distribution #Central #Peripheral
Batwing
A bilateral perihilar distribution of consolidation is also called a Batwing distribution.
The sparing of the periphery
sparing of the periphery ... most typical of pulmonary ... Reverse Batwing Peripheral
Noncardiogenic Pulmonary Edema - Differential Diagnosis Framework

NCPE Pathophysiology:
Noncardiogenic pulmonary edema occurs because of excessive pulmonary capillary
Noncardiogenic Pulmonary ... Noncardiogenic pulmonary ... because of excessive pulmonary ... • Absence of peripheral ... • Patchy or peripheral
Eosinophilic Pneumonia
When to suspect Eosinophilic Pneumonia? Non-resolving pneumonia + BAL > 25% eosinophils + excluded more
Effusions - Rare Peripheral ... Constitutional Symptoms - Peripheral ... Consolidations AKA "inverse pulmonary ... edema" - Common Peripheral ... Pneumonia #diagnosis #pulmonary
Biologic therapy for eosinophilic asthma 
• Mepolizumab (Nucala) 
  • Anti-lL-5, 100 mg SQ q4
q4 weeks • Peripheral ... q4 weeks • Peripheral ... q8 weeks • Peripheral ... q2 weeks • Peripheral ... #pharmacology #pulmonary
Differentiating Features Between Central and Peripheral Cyanosis

Mechanism - Arterial destauration
Sites - Skin, mucous membrane of oral
Between Central and Peripheral ... Oxygen therapy - Pulmonary ... Mechanism - Increased peripheral ... Cyanosis #Central #Peripheral
Sarcoidosis 
Non-caseating granulomas (Composed of T-helper & inflammatory cells) 
Clinical:
 • Disease fatal in 10% of
polyarthritis • Pulmonary ... Bell's palsy, peripheral ... Symptoms #Signs #Pulmonary
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
lung disease • Pulmonary ... Septal Defect Pulmonary ... Hypothyroidism Peripheral ... Algorithm #Causes #Pulmonary
Dihydropyridine Calcium Channel Blockers

Mechanism of Action:  L-Type calcium channel blockade - Inhibits the influx of
in coronary and peripheral ... raynauds phenomenon, pulmonary ... Reflex Tachycardia, Peripheral
One-page resource for Lung POCUS in COVID19:
- likely (unproven) sensitive due to peripheral distribution of lesions
sensitive due to peripheral ... #coronavirus #pulmonary