Around the beginning of Summer, I noticed some type of lump/swelling on my inner elbow, right above the crease on the side closest to my body with palm facing up. My doctor said that it must be a hematoma and that I might have bumped it without noticing. After a several months, the swelling decreased and nearly disappeared, but it has recently come back. There is no discoloration and no lump can be felt beneath the skin when my arm is bent. With my arm straight, the swelling is about two inches in diameter, and raised only about a half-inch.
Is this characteristic of a hematoma? Should I ask my doctor again? What else might it be?
Thanks!