spontaneous pneumomediastinum secondary to covid-19 in iran: a case series study

Background: pneumomediastinum is defined as open-air in the mediastinum. spontaneous pneumomediastinum (spm) occurs when air leaks into the surrounding vascular sheath through small alveolar ruptures. case report: we want to introduce 4 different cases with different outcomes. the first case was a 60-year-old man with a history of psychological disorders, the second case was a 41-year-old man with a history of hypertension (htn) and asthma, the third case was a 50-year-old heavy smoker with no history of an underlying disease, and the fourth case was a 60-year-old man with a history of schizophrenia. they suddenly developed an exacerbation of cough, dyspnea, chest pain, and a severe decrease in oxygen saturation during hospitalization. antibiotic therapy, corticosteroids, and high-dose oxygen therapy were administered to the patients. one of these patients died. conclusion: all patients can potentially be at risk for this complication and have a good prognosis if diagnosed early and treated properly overall.