Spontaneous pneumomediastinum, pneumothorax and subcutaneous emphysema in COVID-19 pneumonia: a rare case and literature review

BMJ Case Rep. 2020 Dec 12;13(12):e239489. doi: 10.1136/bcr-2020-239489.

Abstract

Spontaneous pneumomediastinum (SPM) and pneumothorax (PNX) unrelated to positive pressure ventilation has been recently reported as an unusual complication in cases of severe COVID-19 pneumonia. The presumed pathophysiological mechanism is diffuse alveolar injury leading to alveolar rupture and air leak. We present a case of COVID-19 pneumonia complicated on day 13 post admission by SPM, PNX and subcutaneous emphysema in a patient with no identifiable risk factors for such complication. The patient received medical treatment for his COVID-19 infection without the use of an invasive or non-invasive ventilator. Moreover, he is a non-smoker with no lung comorbidities and never reported a cough. He was eventually discharged home in stable condition. A comprehensive literature review revealed 15 cases of SPM developing in patients with COVID-19 pneumonia.

Keywords: infectious diseases; pneumomediastinum; pneumonia (infectious disease); respiratory medicine.

Publication types

  • Case Reports
  • Review

MeSH terms

  • COVID-19 / complications*
  • COVID-19 / diagnostic imaging
  • Humans
  • Male
  • Mediastinal Emphysema / virology*
  • Middle Aged
  • Pneumothorax / virology*
  • SARS-CoV-2
  • Subcutaneous Emphysema / virology*