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Reflex Sympathetic Dystrophy (Visit this link)
Reflex Sympathetic Dystrophy aka RSD, Sudek's Atrophy Reflex Sympathetic Dystrophy (RSD) affects extremities. It is also known as Sudek's atrophy. Hand-shoulder syndrome. Etiology unknown but felt to be neural s/p Trauma of any degree. Myocardial infarction (usually left hand). Post surgical. Many others. Clinically, one observes Pain. Skin findings including STS, hyperthesia, vasomotor changes. Disability. Radiographically, there is Prominent periarticular osteopenia. Preservation of joint space. (very important). Increased uptake on bone scan. Rarely, only a segment of an extremity is involved. Prognosis is variable Some cases last for years and may become irreversible. DDx includes: Disuse atrophy. Various arthridities (erosions and/or loss of joint space should be present.) Osteoporosis and syndromes associated with osteoporosis.
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Added: Sun Dec 17 2006
