Usually in cases where the spleen is enlarged to this size, it cannot be removed with a laparoscopic splenectomy. We have had several members of our group relate this fact.
There is an excellent article about the spleen and and the different problems that can occur in the spleen and why at
http://www.eapsa.org/parents/spleen.cfmFor children in whom severe rupture of the spleen is suspected or in whom the spleen is massively enlarged, open spleen removal through a long incision underneath the left rib cage or in the midline of the belly may be needed.
Courtenay, have the doctors given any explanation as to why your spleen continues to enlarge?