RSD... Rsd = reflex sympathetic dystophy. Other names for the same condition include sudeck's atrophy or complex regional pain syndrome (crps). The condition often occurs after an injury. Three phase bone scan is used to aid in diagnosis. Classic finding on three phase bone scan is increased peri-articular uptake. Children may show atypical presentation on three phase bone scan.
See below. Rsd is a chronic pain condition that is believed to be the result of dysfunction in the central or peripheral nervous systems. Rsd involves irritation and abnormal excitation of nervous tissue, leading to abnormal impulses along nerves that affect blood vessels and skin.