27 October 2021
: Case report 
A Unique Triad of Invasive Sinusitis, Brain Abscess with Focal Cerebritis, and COVID-19
Challenging differential diagnosis, Rare coexistence of disease or pathology
Ahmed Shahab1EF*, Alok Arora2EF, Sultan S. Chhina3EF, Saud Dhillon1EF, Umair Nazir1EFDOI: 10.12659/AJCR.933177
Am J Case Rep 2021; 22:e933177
Figure 3. CT Sinus without contrast, Day 3. There is complete opacification of the anterior right ethmoid air sinus (arrow A) with extension into the right superior medial orbit. There are bony erosions of the medial wall of the right orbit (arrow B). Standard Sinus, no contrast.