A 61-year-old man with no significant medical history presented to the emergency department with worsening dyspnea a week after close con-tact with someonewhohad COVID-19. Hewas unvaccinated. He washypoxemic, and the chest radiograph showed bilateralopacities consistent withCOVID-19 pneumonia and tested positive for RNA from SARS-CoV-2. Blood tests showed raised inflammatory markers. Computed tomography (CT)of the chest demonstrated bilateralground-glass opacities. Thepatient washospitalized andtreated with high-flow nasaloxygentherapy, dexameth-asone, and sarilumab. His clinical status improved, and hewas discharged home after 1 week of hospitalization.Three weekslater, hepresented againwith worsening dyspnea, fever, and pleuritic chest pain. A CT pulmonary angiography ruled out pulmonary embolism (Fig. 1A, B) but demonstrated athin-walled cystic lesion with an air–fluid level (Fig. 1A, arrowheads) that suggested an infected pneumatocele. The patient was managed conserva-tively with amoxicillin/clavulanic acid for 3 weeks. During the follow-up, the patient reported the disappearance of symptomatology
