Final answer:
Myofascial trigger points are not a characteristic of the pain syndrome known as reflex sympathetic dystrophy; this condition commonly features hypersensitivity to pain, color changes in the skin, sweating, and shiny skin on the affected areas.
Step-by-step explanation:
The pain syndrome known as reflex sympathetic dystrophy (RSD), also called Complex Regional Pain Syndrome (CRPS), is characterized by a group of symptoms including severe and chronic pain, changes in skin color, temperature, and sweating and shiny skin. Among the options provided, myofascial trigger points are not typically a characteristic of RSD. Instead, myofascial trigger points refer to sensitive points in the fascial tissue surrounding the muscles and are more commonly associated with myofascial pain syndrome, a different condition. RSD generally involves increased sensitivity to painful stimuli (hyperesthesia or allodynia), changes in skin color including cyanosis or redness, temperature changes in the extremities to feel warmer or cooler than usual, and may also affect the skin causing increased sweating (hyperhidrosis) and a shiny appearance.