Hello I’m a male 68 years old, I have a lump on the lower backside of me head. It is tender to touch, do not recall bumping it. I recently had a severe contusion to my right thigh it caused a huge bruise that is working its way down my leg. That occurred six days ago, still very sore with a knot that is getting smaller. I have CLL
And am taking Imbruvica to control white cells, after 6 months my labs are in the normal range. However I bruise very easy since on the drug. Just wondering what that knot is on back of skull,