Which feature is commonly seen in Complex Regional Pain Syndrome?

Which feature is commonly seen in Complex Regional Pain Syndrome?

• A. Pain out of proportion with examination and skin changes, possibly Raynaud-like changes
• B. Absent pain with stiffness
• C. Isolated sensory loss without color change
• D. Only motor weakness without sensory changes

Answer: (A)

CRPS presents with persistent, severe limb pain that is out of proportion to examination, together with autonomic and trophic changes such as skin color and temperature fluctuations, edema, sweating, and sometimes Raynaud-like vasomotor changes. This combination of disproportionate pain plus visible skin/vascular changes is the hallmark that the correct option captures. The other descriptions don’t fit because they imply no pain or isolate abnormalities to a single system without the autonomic or trophic changes that CRPS typically shows. For example, absent pain with stiffness would not describe a pain syndrome; isolated sensory loss without color or temperature changes doesn’t reflect the autonomic dysregulation and trophic alterations, and motor weakness without sensory changes misses the characteristic sensory and autonomic symptom cluster seen in CRPS.

CRPS presents with persistent, severe limb pain that is out of proportion to examination, together with autonomic and trophic changes such as skin color and temperature fluctuations, edema, sweating, and sometimes Raynaud-like vasomotor changes. This combination of disproportionate pain plus visible skin/vascular changes is the hallmark that the correct option captures. The other descriptions don’t fit because they imply no pain or isolate abnormalities to a single system without the autonomic or trophic changes that CRPS typically shows. For example, absent pain with stiffness would not describe a pain syndrome; isolated sensory loss without color or temperature changes doesn’t reflect the autonomic dysregulation and trophic alterations, and motor weakness without sensory changes misses the characteristic sensory and autonomic symptom cluster seen in CRPS.