Injection injuries of the hand: Caveat doctor.

Airless gun injection injuries of the hand are a surgical emergency. The injection of paint or paint solvents are the most pernicious, whereas grease or diesel fuel injections have a better prognosis for the victim. Tissue necrosis and subsequent morbidity results from the diffusion of the noxious substance. Solvents and paint generate the most severe inflammatory response. Prompt major surgical treatment can minimize morbidity.