Genotype comparison between our patient and the 1p31.3p32.2 deletion syndrome. Red bar: the 1p31.1-p32.2 deletion region detected in our case. Three possible candidate genes (red boxes), including ORC1, SCP2, and DAB1, were pinpointed in this case. However, the NFIA gene (blue box), which is the core gene for 1p32-p31 deletion syndrome, was not involved in our case.