Pneumomediastinum after Endobronchial Ultrasound–Guided Transbronchial Needle Aspiration: A case report

Pneumomediastinum is defined as an abnormal accumulation of air within the mediastinum. It occurs most often when increased alveolar pressure leads to alveolar rupture, and less frequently when there is perforation of the tracheobronchial tree. Pressure gradients then allow air to spread via the fascia to the surrounding soft tissues, mediastinum, and/or retroperitoneum. This is a report of a case of pneumomediastinum following endobronchial ultrasound–guided fine needle aspiration (EBUS/TBNA) of the mediastinal lymph nodes, widely regarded as a safe procedure.

Endobronþial ultrason rehberliðinde transbronþial iðne aspirasyonu sonrasý geliþen pnömomediasten: olgu sunumu

Pnömomediasten mediasten içine anormal þekilde havanýn birikmesi olarak tanýmlanmaktadýr. Sýklýkla alveoler basýncýn artýþý sonucu alveol rüptürü olduðunda ve daha az olarak da trakeobronþial aðacýn perforasyonu sonucunda meydana gelmektedir. Basýnç farklýðý nedeniyle hava, yumuþak dokularý saran fasya boyunca mediasten ve/veya retroperitonal bölgeye ulaþýr. Genelde güvenli bir iþlem olarak bilinen endobronþial ultrason eþliðinde yapýlan mediastinal lenf bezi iðne aspirasyonu sonrasý pnömomediasten geliþen olguyu sunuyoruz.

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