Foreign body in arm
C/o non-traumatic swelling in mid arm - 2 - 3 days. NO pain. Remote history of thorn injury to arm - about 8 - 10 yrs back. Referred for ultrasound for swelling in arm
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- irregular but well-defined collection is noted in the region of interest. Floating echoes is noted.
- a linear echogenic focus ( 5 - 6 mm long x 1 mm width ) is noted abutting wall of the lesion - Foreign body.
- approximate Size of collection - Craniocaudal - 35 mm, Transverse - 25 mm, Anteroposterior - 13 mm
- approximate Volume - 6 ml
- lesion Plane - Subcutaneous.
- abuts underlying muscle without involving it.
- vessel relation - A patent superficial vein is noted deeper and radial aspect of lesion.