NA

Dermatomyositis (DM) is an inflammatory myositis. Clinically amyopathic dermatomyositis (CADM) and hypomyopathic dermatomyositis (HDM) are rare forms of DM in which skin manifestations are present with no and minimal clinical and laboratory evidence of myositis respectively. A common complication of CADM/HDM is interstitial lung disease (ILD), with the most common histopathologic variant of non-specific interstitial pneumonia (NSIP). This case highlights the development of ILD and severe muscle weakness, including proximal limb muscles, muscles of respiration and muscles of deglutition in a patient with previous diagnosis of hypomyopathic dermatomyositis.

As COVID-19 pandemic is spreading worldwide with high infectivity rates of various strains, it is also challenging our healthcare system with its respiratory complications, and limited availability of healthcare providers. On the other hand, a huge vaccination program against COVID-19 is being conducted throughout the world. This viral infection and vaccination program has also brought into account the controversies of some neurological and autoimmune complications. Although the exact mechanism of these complications is still unknown, some autoimmune mechanisms have been predicted. These complications may further challenge the management of this novel viral infection. One of the rare complications of COVID-19 infection and its vaccination is de novo development or flare of ANCA-associated vasculitis, which has also been found in many recent case reports.