Foreign body granuloma and synovitis of the finger: a hazard of ring removal by the sawing technique.

A case of chronic digital synovitis and foreign body reaction secondary to metallic filings is reported. The patient had a digital mass and a previous history of a ring finger injury. A saw action ring remover was implicated as a source of foreign bodies produced by ring removal over the open wound. Care should be taken to avoid implantation of metal filings with this technique, and an alternate method of removing rings from injured fingers should be considered.