| Phenotype details |
NDD, short stature, nasal speech, Full Scale IQ of 76 and an adaptive behavior score of 67 (Adaptive Behavior Assessment System-II). Dysmorphic features in Case 1. A and B: show prominent nose, full nasal tip, thick alae nasi, and long philtrum. C and D: show prominence of the proximal interphalangeal (PIP) joints in both hands. E: shows small fifth toenails. |