The detected deletions completely overlapped with previously reported 2q37 BDMR-associated abnormalities, and the approximately 3.5 Mbp smallest region of overlap hosted 38 genes already proposed as being related to the AHO-like phenotype (GCP1, GPR35, HDAC4, CAPN10, HDLBP, PASK, FARP2, and STK25) (10, 14–18). Here, HDAC4 is linked to pseudohypoparathyroidism type 1A.