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
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation Syndrome ... Weakness, Loss of Chest ... Left Shunt - Anatomic ... Hepatopulmonary Syndrome ... #differential #diagnosis
Diagnostic approach to the admitted patient with possible COVID-19

Initial evaluation
- Chest X-ray
- Lung ultrasound (thorough "lawn-mower"
evaluation - Chest ... look for focal a-lines ... as clinically indicated ... iBookCC #COVID19 #algorithm ... #SARSCoV2 #Coronavirus
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
Syndromes - OnePager ... Renal Syndromes ... Other tests: • CT ... CT ... FINDINGS: • U/A:
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
Respiratory Distress Syndrome ... known clinical insult ... chest radiograph ... computed tomographic (CT ... Definition #Criteria #Diagnosis
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
Pulmonary Nodule
Evaluation is guided by nodule size & assessment of probability of malignancy. In addition is
yield of available diagnostic ... repeat chest CT ... lung malignancy, clinical ... CT imaging, positron ... diagnosis of lung
Mosaic Attenuation on Chest CT
 • Variable attenuation seen on a chest CT in a lobular
attenuation seen on a ... chest CT in a lobular ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical