53 results
Feeding Vessel Sign on Chest CT
 • Distinct pulmonary vessel leading into a lung nodule or
CT • Distinct ... pulmonary vessel ... leading into a ... #diagnosis #radiology ... #clinical
Halo Sign on Chest CT
 • SPN or mass surrounded by a circumferential GGO
 • DDx:
CT • SPN or mass ... surrounded by a ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
On the left a patient who had a CT to rule out pulmonary embolism.
There is a
who had a CT to ... rule out pulmonary ... The diagnosis based ... #Clinical #Radiology ... #CTChest #SeptalThickening
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Hypoxemia Differential ... Diagnosis Algorithm ... neuromuscular disease, ↓ chest ... #Diagnosis #Algorithm ... #pulmonary #Aa
Venn Diagram - Does this patient have pneumonia?
Diagnosis is generally based on three lines of evidence:
Diagnosis is generally ... Imaging evidence of a ... (e.g., CXR, CT, ... ultrasound) - ... #Pulmonolary
Causes of Polycythemia (Erythrocytosis) - Differential Diagnosis Algorithm
Relative - Normal RBC Mass / Decreased Plasma Volume
Erythrocytosis) - Differential ... Diagnosis Algorithm ... Abnormal Abdominal Ultrasound ... Cyanosis without Pulmonary ... #Diagnosis #Algorithm
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
hematogenous spread of a ... Diagnosis of Miliary ... #diagnosis #pulmonary ... #CXR #clinical ... #CT
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Weakness, Loss of Chest ... Elasticity (flail chest ... Left Shunt - Anatomic ... Hypoxia #hypoxemia #differential ... #diagnosis
Diagnostic approach to the admitted patient with possible COVID-19

Initial evaluation
- Chest X-ray
- Lung ultrasound (thorough "lawn-mower"
evaluation - Chest ... X-ray - Lung ultrasound ... look for focal a-lines ... - CBC with differential ... iBookCC #COVID19 #algorithm
Pulmonary Embolism with IVC Thrombus In Transit

A patient presents with chest pain. Which of the following
In Transit A ... presents with chest ... most support her diagnosis ... Thrombus #InTransit #clinical ... #ultrasound #echocardiogram