I have had some intermittent pain in my left wrist for about 6 years. Two years ago, I noticed a small lump in the same spot. My doctor, a rheumatologist, and a neurologists examined it and classified it as a ganglion cyst.The lump would get smaller from time to time, but would never go away completely. In the last 6 months, the pain has intensified. Up until now, I only had x-rays of the wrist that showed nothing. Last week, I had an ultrasound that showed "a probable complicated ganglion cyst." The report says the following, verbatim: "in the area of palpable concern, there is a 1.0 x 0.4 x 1.3 cm fluid collection identified with minimal low level echoes. It is not vascular on color doppler interrogatoin. It does not appear to be related to the tendons. This lies deep to the extensor digitorum tendons. The tendons themselves apepar unremarkable." Along with pain, I also started having an intermitten "pins and needles" sensation and some numbness. This goes away with rest and gets worse after typing.
My question is: what is a complicated cyst, as opposed to a simple cyst; and what are the chances that this is not a cyst but something else, more serious? Would you recommend further investigations?
Thanks in advance.