I'm dealing with costochondritis and I'm really feeling some pain around my rib. I've noticed a small lump above the skin on my rib too. Is this possibly a sign of cancer? I'm quite worried.

Its understandable to be concerned, but costochondritis typically causes rib pain due to inflammation of the cartilage, not cancer. The small lump you noticed could be a benign cyst or muscle-related, but its always a good idea to get it checked by a doctor to rule out any other concerns and get peace of mind.