Ultrasound-guided Removal of Retained Soft Tissue Foreign Body with Late Presentation

Foreign body （FB） removal represents a large part of the work in surgical practice.[1] However,FB removal may often be a surgical challenge because of the nonpalpated and close anatomical relationship of the FB to vital structures or due to patients with cicatricial diathesis.[2] Retained FBs may result in infection,chronic pain,structural injury,granuloma,and psychological distress,especially with late presentation （more than 1 week from the time of injury）.