20q11.2 microduplication syndrome
20q11.2 microduplication syndrome is a rare chromosomal anomaly syndrome, due to partial duplication of the long arm of chromosome 20, characterized by psychomotor and developmental delay, moderate intellectual disability, metopic ridging/trigonocephaly, short hands and/or feet and distinctive facial features (epicanthus, hypoplastic supraorbital ridges, horizontal/downslanting palpebral fissures, small nose with depressed nasal bridge and anteverted nostrils, prominent cheeks, retrognathia and small, thick ears). Growth delay and cryptororchidism are often associated features.
MONDO:0000508
syndromic intellectual disability
excluded_subClassOf
MONDO:0015159
multiple congenital anomalies/dysmorphic syndrome-intellectual disability
is_a
MONDO:0016970
partial trisomy of the long arm of chromosome 20
is_a
dup(20)(q11.2)
exact