Most important of all, is that he's okay. Some mixed news. The good news is that his WBC is staying in a good range - 10,000 today. So, all seems stable on the leukemia front. More good news is the pericarditis is slowly improving.
Tests indicate that the pericardial fluid amount is less than last week.
All blood test results thus far have been negative, so they still do not know what caused the pericarditis. Since the transplant will leave him with no immune system for a long period, they really want to determine the cause so that any additional treatment may be performed now. He will go in on Monday to have a thoracentesis and lung biopsy. They will test the fluid and tissue in hopes of determining the best treatment. All went well.