Sudeck’s osteoneurodystrophy / Algodystrophy / Complex Regional Pain Syndrome I / Casualgia
CRPS I : Regional Pain Syndrome due to tissue trauma in which symptoms are not related to the inciting trauma and are not confined to the distribution of a single peripheral nerve.
CRPS II : Regional Pain Syndrome that develops after injury to a Peripheral Nerve , usually a major nerve trunk. Spontaneous Pain initially develops within the territory of the affected nerve but eventually may spread outside that nerve distribution (Median > Sciatic )