Bravo, if you are living in the DC area, I would definitely make a point of trying to go and see Dr Donlin Long in Johns Hopkins in Baltimore. While he isnt operating any more, I saw him recently and got some good advice and he is a very well educated and knowledgeable man in the area of Tarlov Cysts. A lot of his peers also recommend him. He will be able to advice on what action to take with regard to the cyst and where to have surgery, if it is required.

Good luck and let us know.