Hi there Debbie, I'm pretty new to the board but read your post with great interest; I too have a lump in my left quad (my weak leg). I noticed it about a year ago (when I had health insurance!) but assumed it was due to the water aerobics I was doing several times a week.
I look forward to hearing about your appointment Wed. as I still languish in my leg exercise diagnosis! Good luck to you

Deb~