I had one before. Of course, this time the ultrasound found 2 in there.
It helped me to think of the cyst as a cross between an inflatable tire and a honeycomb. It's oddly shaped, with lots of fluid filled chambers, and your body grows it to act as additional cushioning in the knee joint. Last time we didn't recognize what it was until it was a bit bigger than an egg (on the inside of the knee - the outside looked like I had a 12 inch softball in there). This time you can see the difference if you look at both knees, but it's nowhere near as large, even with two.
What they can do about it is ultrasound guided needle aspiration, where they use an ultrasound to find relatively larger chambers in the cyst and drain the fluid, in essence deflating the cyst. That didn't work for longer than about 8 weeks for me last time although it generally lasts about 6 months, BUT that was also when I was MO and had been walking on a severely crushed meniscus for 6 months before it was "shaved." After a couple years of trying the draining, and since I was unable to lose/keep off weight without working out and unable to work out because of the knee, they removed it. It required a j-shaped incision all the way across the bottom of the knee, up the side, and half way across the top, and then 2 weeks on crutches. Removal is considered a last-ditch tactic because it is likely to come back, but may be necessary if movement is significantly impaired.
I don't want to go either of those routes again. I'm going to be asking the ortho for a PT referral so that I can get knee stabilization exercises, and also have her advise me on the levels/kinds of exercise I should be doing to stay healthy without dealing with this repeatedly. I'm actually rather thrilled, however, that it took this long for it to become noticeable, which suggests (to me anyway) that my walking/running/skating will likely be ok. And - it means that I have a reason to NOT be shoving heavy boats around in wind and waves for the most part!
Got my fingers crossed! I see the ortho on Tuesday, and then will call for a PT appointment. I've got a good one I've used before... she knows my body, so it's a matter or making myself available when she works (she prefers to only work when her son is in school or camp, so she has limited hours). Unfortunately, even though I know I'll get the referral, the PT office won't schedule me until that referral is in the computer, so I'll need to wait.
On the positive side, the vascular tech who did the ultrasound said my vascular system in the legs was very strong and healthy, and there is no problem with blood flow. So that's good news.
Rebecca
Circumferential LBL, anchor TT, BL/BR, brachioplasty 12-16-10 Drs. Howard and Gutowski
Thigh lift 3-24-11, Drs. Howard and Gutowski again!

Height 5' 5". Start point 254. DH's goal: 154. My guess: 144. Insurance goal: 134. Currently bouncing around 130-135.