Neumomediastino espontáneo: una manifestación extramuscular de la dermatomiositis anti-MDA5. Reporte de 2 casos

The use of specific antibodies in inflammatory myopathies has improved the characterization of this disease, identifying different clinical phenotypes. Patients with dermatomyositis and anti-MDA5 antibodies display typical skin symptoms, lesser muscular involvement, and a prevalence of interstitial lung disease of up to 91%. Beyond interstitial lung disease, spontaneous pneumomediastinum has been identified as a rare but potentially fatal pulmonary manifestation. Two cases of this complication in patients with anti-MDA5 dermatomyositis are reported.