Distal trisomy of the long arm of chromosome 10 (10q) is characterized by pre- and postnatal growth retardation, a pattern of specific facial features, hypotonia, and developmental and psychomotor delay. The disease is Monarch Disease Ontology identifier MONDO_0019884 (distal trisomy 10q). Also known as: Chromosome 10, Distal Trisomy 10q, distal duplication 10q, distal trisomy type 10q, telomeric duplication 10q, trisomy 10qter.