None of the findings individually seen in patients with Covid-19 pneumonia are pathognomonic, except for some of the signs of angiopathy / vasculopathy that will be shown in subsequent posts.

Organizing pneumonia patterns, crazy-paving patterns and ground glass can all occur in other situations as well, and before April 2020, we would consider all the conditions in these images in the differential diagnoses. Today in the setting of the pandemic, our first diagnosis is Covid-19, assuming that the clinical picture fits the CT scan appearance.