Beta Thalassemia Minor - Splenomegaly ?

Just did a ct scan. My spleen is at 13.6 X 12 X 5cm. Splenic index on calculator were 816 and 500cm3 of volume.

They say those are splenomegaly, but I have beta thalassemia minor. Heard that enlarged spleen is normal for us. I also had other things related to thalassemia (like gallbladder stones)

I'm a tall guy. 1.91m and fit. Is this something to worry? My doctor told me he is not worried but would like for me to talk to a hematology professional (which will take a while) since I do have beta thalassemia.

Anyone can share their experiences with this? Especially regarding size and volume for taller people (which I heard impacts but not so sure)