Reflex Sympathetic Dystrophy is another name for which condition?

Reflex Sympathetic Dystrophy is another name for which condition?

• A. Fibromyalgia
• B. Complex Regional Pain Syndrome I
• C. Chronic Fatigue Syndrome
• D. Larson's Syndrome

Answer: (B)

Reflex Sympathetic Dystrophy is an older term for Complex Regional Pain Syndrome occurring without a clearly identified nerve injury. The current naming differentiates CRPS I for cases where no peripheral nerve lesion is found, and CRPS II for cases with a definite nerve injury. This condition typically features severe, burning pain out of proportion to the injury, along with autonomic changes such as swelling, color and temperature differences in the limb, sweating, and restricted movement. That combination of disproportionate pain and regional autonomic symptoms after an injury is what links RSD to Complex Regional Pain Syndrome I. Other listed conditions—fibromyalgia, chronic fatigue syndrome, and Larson’s syndrome—do not describe this localized autonomic and neuropathic pain pattern.

Reflex Sympathetic Dystrophy is an older term for Complex Regional Pain Syndrome occurring without a clearly identified nerve injury. The current naming differentiates CRPS I for cases where no peripheral nerve lesion is found, and CRPS II for cases with a definite nerve injury. This condition typically features severe, burning pain out of proportion to the injury, along with autonomic changes such as swelling, color and temperature differences in the limb, sweating, and restricted movement. That combination of disproportionate pain and regional autonomic symptoms after an injury is what links RSD to Complex Regional Pain Syndrome I. Other listed conditions—fibromyalgia, chronic fatigue syndrome, and Larson’s syndrome—do not describe this localized autonomic and neuropathic pain pattern.