Arthroscopy, note the light coming through the skin as well as lining of the knee joint.

Author: David Bryson

David Bryson: Cladonia Resources

Photo size: 17.3 Mpixels (49.6 MB uncompressed) - 5439x3187 pixels (18.1x10.6 in / 46.1x27.0 cm at 300 ppi)

Photo keywords: arthroscope, Arthroscopy, knee joint