Last week I noticed a swollen area on one side of my groin, felt raised and was very tender to the touch. My doctor suspected a swollen lymph node, although it was curious how it was a thin long raised area and not a typical swollen lump in one spot. He put me on antibiotics which I completed taking today. It has not resolved the problem, the area still exhibits varying degrees of swelling depending on time of day, activity level, and I have since developed a bruising sensation along the upper part of my leg not immediately below the lump but a couple of inches lower, extending around the side of my leg even at the top of my buttock region. I also feel some sort of sensation in my abdominal muscle in the area of the lump. I phoned my doctor today, and despite the bruising sensation I described, he doesn't believe it is anything muscular in nature and recommends a biopsy. I am very actrive, regularly engage in highly intense tennis and cycling up very steep mountain roads for long periods of time. I do not recall an injury per se, but do recall feeling something funny in my hip within tha past couple of weeks. The doctor compromised with me on going with a CT before doing the biopsy, I am wondering if you think this would weed out a possible strain or hernia, or if anything I am describing sounds like it could be related to my physical activity. I have not had any symptoms one associates with a swollen lymph gland, my blood test turned out fine, and I have no known infections. I am able to continue physical activity despite the tenderness, as I am not experiencing pain aside from knowing I have this sore area which can be felt when walking, bending, etc. Thanks in advance for your assistance.