I am a long time HIV survivor (over 20 years) with no opportunistic infection episodes. I was however, diagnosed with KS and underwent 3 months of chemo in the summer of 2014. My cancer has been deemed in remission . Today, I have a lump in the inner crease of my left leg (closer to my pelvis). A year ago, it was the size of a dime. Today, its about the size of a nickel. The lump is not noticeable as it feels deeply imbedded. The lump does not leak, does not hurt (a slight discomfort when squeezed). I do not want to jump to the Cancer-conclusion immediately. Its possible it could be a benign cist. Is there any insight to what the lump could be?