Kareem Tooba, Frain David, Raza Samavia, Watson Nicholas Alexander
Radiology, University Hospitals of North Midlands NHS Trust, Stoke-on-Trent, UK
Radiology, University Hospitals of North Midlands NHS Trust, Stoke-on-Trent, UK.
BMJ Case Rep. 2025 Jan 30;18(1):e262771. doi: 10.1136/bcr-2024-262771.
Subdermal contraceptive implants are now commonly used throughout the world. One of the rare complications of these implants is migration to the lungs due to misplacement of the implant during insertion, with only a limited number of cases documented. Here, we present a case where a subdermal contraceptive implant embolised in the subsegmental branch of the pulmonary artery within the anterobasal segment of the left lower lobe. Due to incorrect placement, the subdermal implant migrated from subcutaneous plane into one of the upper extremity veins. It then travelled the venous pathway to the heart, passed through the right atrium and ventricle, transferred into the left pulmonary artery and eventually embolised into the anterobasal segmental branch. Treatment options for such cases include endovascular retrieval, mini-thoracotomy (open thoracic surgery, video-assisted thoracoscopic wedge or segmental resection) or conservative management.
皮下避孕植入物目前在全球广泛使用。这些植入物罕见的并发症之一是由于植入过程中放置错误而迁移至肺部，仅有少数病例记录在案。在此，我们报告一例皮下避孕植入物栓塞于左下叶前基底段肺动脉亚段分支的病例。由于放置错误，皮下植入物从皮下平面迁移至一条上肢静脉。然后它沿静脉路径到达心脏，穿过右心房和右心室，进入左肺动脉，最终栓塞至前基底段分支。此类病例的治疗选择包括血管内取出、微创开胸手术（开胸手术、电视辅助胸腔镜楔形或节段性切除）或保守治疗。
