15q11q13 microduplication syndrome (MONDO_0012081) can be described as follows. The 15q11-q13 microduplication (dup15q11-q13) syndrome is characterized by neurobehavioral disorders, hypotonia, cognitive deficit, language delay and seizures. Prevalence is unknown. Also known as: 15q11-q13 duplication syndrome, 15q11-q13 microduplication syndrome, 15q11q13 duplication syndrome, Dup15q, autism susceptibility 4, dup(15)(q11q13), trisomy 15q11-q13, trisomy 15q11q13.