A Case of Distant Migration of the Nexplanon Contraceptive Implant

A 29-year-old woman presented with concerns about her Nexplanon implant, which had been inserted into her left arm over two years ago. The implant, initially palpable, was no longer felt, and the patient suspected migration after a grabbing incident seven months post-insertion. Despite negative results from a urine pregnancy test, ultrasound, and X-rays, a CT scan revealed a 3.6 cm radiopaque foreign body in the right lower lobe's pulmonary vessel, confirming the implant had migrated intravascularly. This rare case underscores the potential for Nexplanon migration to distant locations, such as pulmonary vessels, and highlights the importance of radiographic imaging, particularly CT scans, in diagnosing such complications. Prompt identification and removal are essential to prevent further issues.