Olfactory Bulb Edema in a Patient with Loss of Smell due to COVID-19 infection

Loss of smell (anosmia) and loss of taste (dysgeusia) have been commonly noted in people with COVID-19 infection, including those without any other symptoms such as fever, cough or breathing difficulty. In a recent case, anosmia developed on day 7 of infection. MRI showed edema (swelling) and increased signal of olfactory bulbs and tracts. Patient