Splenorenal fusion: heterotopia simulating a primary renal neoplasm
F. Gonzalez-Crussi, S. Raibley, T. V. Ballantine and J. L. Grosfeld
We report an instance of splenic heterotopia arising within the left kidney
of an otherwise normal female infant. Embryologic considerations suggest
that fusion of nephrogenic mesoderm and splenic anlage in the second month
of gestation accounts for the observed findings. Although
splenic-mesonephric (splenogonadal) fusion is a well-characterized,
although rare, malformation, we were unable to find any previous
description of splenic-metanephric fusion.