'PAR' in PAR 20 or PAR 50 is an acronym standing for Parabolic Aluminized Reflector. This name refers to the construction of the PAR bulb. The bulb traditionally features a tungsten filament surrounded by a reflector with an aluminum coating (hence aluminized). The reflector intensifies the beam and makes it more efficient.
Toe necrosis; Toe ischemia; Amputation; Dry gangrene Abstract Toe necrosis may have vast different etiologies. These include ischemia, embolus, and others. (1) The most common etiology is ischemia. It is a reduction in blood supply to a viable tissue that can lead to susceptibility to infection and tissue death. Peripheral ischemia, which is rooted in the
Causes of Toe Pain. 1  Athlete's Foot Athlete's foot (tinea pedis) is a skin infection caused by the ringworm fungus. 2  Broken Bone (Types of Bone Fractures) A broken bone is a fracture. 3  Bruises A bruise, or contusion, is caused when blood vessels are damaged or broken as the result of a blow to the skin.