foreign body

He felt like he had a foreign body inside of him.

After being given antibiotics to combat the toxins, a "foreign body" was cut out of his toe and he is set to make a full recovery.

Four weeks after the bite, Mr Blake discovered a "foreign body" in his foot.

The culprit is a little-understood immune reaction called foreign body response, or FBR, in which the body encapsulates the implant in scar tissue.

"Establishing a complete understanding of the molecular mechanisms driving the foreign body response presents the final frontier in developing truly bio-integrative medical devices," Gurtner said.