Split-Hand/foot Malformation with Long Bone Deficiency 1, also known as split-hand-foot malformation with long bone deficiency 1, is related to split hand-foot malformation and chromosome 17p13.3, telomeric, duplication syndrome. An important gene associated with Split-Hand/foot Malformation with Long Bone Deficiency 1 is SHFL1 (Split-Hand/Foot Malformation With Long Bone Deficiency 1). Affiliated tissues include bone and brain, and related phenotypes are split hand and short hallux