147 results
Forced vital capacity (FVC) curves comparing normal, obstructive, and restrictive disorders. Curves are as they appear
Forced vital capacity ... commonly available spirometers ... Diagnosis #Pulmonary #Spirometry ... Forced #Vital #Capacity
Asthma vs COPD Presentation and Diagnosis
Asthma:
 • Epidemiology: Age usually < 45, History (personal or family)
Dyspnea, Wheeze, Chest ... Variably abnormal spirometry ... bronchodilator, Spirometry ... Cyanosis, Barrel chest ... Persistently abnormal spirometry
Hoover's sign on Physical Exam
Paradoxical retraction of the lower intercostal spaces on inspiration
Pulmonary hyperinflation → flattening
Hoover's sign on ... downward displacement capacity ... Jcortesizaguirr #Hoovers #sign
Signs of Pulmonary Hypertension on Chest CT
 • Main PA is dilated and larger than the
Signs of Pulmonary ... Hypertension on Chest ... Carina crossover sign ... PHTN #ChestCT #CTChest
Halo Sign on Chest CT
 • SPN or mass surrounded by a circumferential GGO
 • DDx:
Halo Sign on Chest ... doi.org/10.1016/j.chest ... .2016.12.033 #Halo #Sign
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
Lung Findings on Chest ... Reverse Halo Sign ... Halo Sign 6. ... ChestCT #radiology #CTChest
Feeding Vessel Sign on Chest CT
 • Distinct pulmonary vessel leading into a lung nodule or
Feeding Vessel Sign ... on Chest CT • ... doi.org/10.1016/j.chest ... Feeding #Vessel #Sign
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
of ground glass opacity ... of ground glass opacity ... Radiology #HRCT #CTChest
Luftsichel Sign in Left Upper Lobe Collapse - Chest X-Ray

An upper lobe collapse causes the collapse
Luftsichel Sign ... Lobe Collapse - Chest ... causes a veil like opacity ... #Luftsichel #Sign ... clinical #radiology #Chest
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
neuromuscular disease, ↓ chest ... • ↓Diffusion Capacity