How Can RSD Be Diagnosed?
partially-paralyzed from a ruptured AVM?
Certainty depends on symptoms.
Detailed Answer:
I read your question carefully and I understand your concern.
The diagnosis of RSD is made based on the clinical symptoms presented by the patient. There is not any diagnostic test which makes the diagnosis for certain. There are a set of diagnostic criteria which have been approved by the International Association for the Study of Pain, they are criteria based on symptoms. Tests may be done to support the diagnosis and exclude other possibilities, but no single test makes the diagnosis.
As for the pinched nerve issue, yes, it is possible to develop RSD from a pinched nerve. So if the affected area corresponds to the pinched nerve it is a possible cause.
I remain at your disposal for other questions.