What is happening is called extramedullary hematopoiesis (EMH) and it is caused by the body's attempts to compensate for a lack of hemoglobin. The best way to eliminate this is by maintaining a higher hemoglobin level, so you will have to continue to to try to convince the staff about the importance of having a higher Hb level. It isn't accurate to say it is the result of trying to create fetal hemoglobin. If only that was the case, these masses might provide something positive, but they simply produce the same bad red blood cells that your bone marrow also creates when your Hb is low. The masses that grow in EMH may be harmless, but often they can cause serious problems if they put pressure on the spine or lungs. The drug hydroxyurea, which is used to raise fetal Hb in thals is also used to reduce the size of the masses. I would suggest talking to your hematologist about the masses and seeing if an MRI may be in order to accurately assess the size and location of the masses to see if any therapy like hydroxyurea would be indicated. Hydroxyurea may also be a consideration because you have not been able to get enough blood to maintain a proper Hb level. If it works to raise your Hb a bit, you won't be getting the iron involved in more transfusions and you may be able to make quicker progress in getting your iron load down. You've made good progress and what we typically hear from patients is that once the ferritin has made a good drop, there has also been a corresponding drop in the organ iron load.