ST. BARTHOLOMEW'S HOSPITAL, LONDON / SCIENCE PHOTO LIBRARY ST. BARTHOLOMEW'S HOSPITAL, LONDON / SCIENCE PHOTO LIBRARY
Removal of viral wart (verruca) on the finger by freezing with liquid nitrogen. The liquid nitrogen is applied through a spray nozzle to whiten the wart for a period of 20-30 seconds; blistering often results. Viral warts are caused by the papovavirus that enters the skin through small cuts, particularly in moist or damp skin.
Model release not required. Property release not required.