COVID-19 is the coronavirus that caused the 2020 pandemic.  Its most common symptoms are respiratory although the are a variety of other vascular symptoms that have been reported as well.

How do we diagnose COVID-19?

Chest X-Ray

Chest x-ray is not used to diagnose people with COVID-19 but is almost always used for people with respiratory symptoms.  The classic findings of bilateral lower lung alveolar infiltrates without effusions can represent COVID-19 but can be seen in other lung diseases as well.


Computed Tomography (CT)

CT is also not used to diagnose COVID-19 directly but is much more specific than a chest x-ray.  The classic findings are bilateral lower lung predominant ground-glass infiltrates without effusions.  Some of the infiltrates may have central lucency.  This appearance is relatively specific for COVID-19 respiratory infections.