Here today, Impla-gone tomorrow: Contraceptive implant travels to lung
The rogue rod slipped into the patient's circulatory system.

Sure, IUDs have been known to go MIA from time to time, but in this “very rare case”, a subcutaneous contraceptive managed to migrate through a woman’s vascular system all the way to her lung.
The 31-year-old was referred for removal of the etonogestrel rod after reporting a three-month history of abnormal uterine bleeding.