40 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
Diagnostic approach to the admitted patient with possible COVID-19

Initial evaluation
- Chest X-ray
- Lung ultrasound (thorough "lawn-mower"
look for focal a-lines ... - CBC with differential ... as clinically indicated ... iBookCC #COVID19 #algorithm ... #SARSCoV2 #Coronavirus
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
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
, it is likely a ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #CTChest #NodularPattern ... MultipleNodules #Nodules #Differential
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
coagulopathy) • CBC w differential ... Other tests: • CT ... CT ... FINDINGS: • U/A: ... Renal #Syndromes #differential
Monod Sign on Chest CT
 • Air surrounding a fungal ball in a preexisting pulmonary cavity
CT • Air surrounding ... a fungal ball in ... a preexisting pulmonary ... #diagnosis #radiology ... #clinical