# Recurrent Endobronchial Coil Migration Associated With Needle Biopsy Following Pulmonary Artery Pseudoaneurysm Embolization

## TL;DR

A patient experienced repeated coil migration into the airway after lung mass biopsies following embolization, highlighting new risks of bronchoscopic coil removal.

## Contribution

This is the first report of recurrent endobronchial coil migration linked to needle biopsies after embolization.

## Key findings

- Recurrent coil migration occurred after CT-guided and EBUS-TBNA biopsies.
- Bronchoscopic removal of coil fragments was effective but led to complications like hemoptysis and pneumonia.
- Needle biopsies may increase the risk of coil migration following embolization.

## Abstract

Endobronchial coil migration is a rare complication of pulmonary artery embolization, occurring when coils erode through a vessel into an airway. We describe a patient who underwent embolization of pulmonary artery pseudoaneurysms associated with a lung mass. The unique aspect of this case is the development of recurrent endobronchial coil migration following a CT‐guided core needle biopsy and a subsequent endobronchial ultrasound‐guided transbronchial needle aspiration (EBUS‐TBNA) of the mass. In both circumstances, the portion of the coil that migrated into the large airways was cut with endoscopic scissors and removed with a flexible bronchoscope. This case highlights that while cutting and removing a portion of a migrated coil bronchoscopically is an effective approach, it can be associated with a risk of recurrent coil migration, haemoptysis, and pneumonia.

This is the first description of recurrent coil migration associated with needle biopsy of a lung mass. This case also highlights the potential risks of clipping and removing a portion of the coil bronchoscopically.