Complex Regional Pain Syndrome

Chronic progressive condition characterized by severe pain, swelling, and skin changes.
Subtypes

Type 1 (AKA RSD) : not associated with nerve injury, but may be associated with other trauma –
Type 2 (AKA causalgia): associated with nerve injury

Both types:

spontaneous pain or allodynia not limited to single peripheral nerve distribution — disporportionate to inciting event.
history of edema, blood flow [...]