| A rare group of multiple congenital anomalies/dysmorphic syndrome characterized by autism spectrum disorder, developmental delay, intellectual disability, hyperphagia/obesity, and short stature (clinical features overlapping with Prader-Willi syndrome). However, it is a clinically and genetically heterogenous group where patients may completely lack or manifests in minority some classical clinical features of Prader-Willi syndrome such as short stature, hypotonia, hypogonadism, hyperphagia and morbid obesity. |