An endoscope (20) comprising a fiber optic waveguide that transmits an image from a distal end to a proximal end, the waveguide (26) having an outer diameter of less than 3 mm, a lens (142) positioned at the distal end of the fiber optic waveguide, an imaging device optically coupled to the proximal end of the fiber optic waveguide, and a sheath (34) extending about the fiber optic waveguide, the sheath (34) including an illumination channel.