Is it a Baxter's cyst? I have had this for about 30 years. I had had a fall and tore my miniscu..
Which was removed in'94.
Only recently, following my TKR, i do exercises for both legs. This has happened in knee with Baxters cyst. of other knee. have I found tenderness especially when I fold my knee tightly over the chest. Otherwise , since I have known about it, I have not had much problem.
Margaret W.