Case of retained foreign body in 54-year-old male who complained of painful foot swelling for duration of 4 months. He received stab injury at construction site and removed rusted nail at time of original injury.A, B. Longitudinal (A) and transverse (B) ultrasounds show echogenic foreign body (between markers, arrows) in abductor halluces longus muscle. As foreign body was located in deep area and adhesion with surrounding soft tissue was suspected due to long term presence of FB, serial dilators with guide wire were employed. C. Guide wire was inserted through 18-G spinal needle. D. After removal of 18-G spinal needle, tract was dilated with 7 to 12 Fr serial dilators introduced along guide wire. E. Mosquito forceps (Halsted-Mosquito Forceps, 12 cm) were used to remove FB. FB = foreign body