| Encompasses heterozygous overlapping microdeletions on chromosome 8q21.11 resulting in intellectual disability, facial dysmorphism comprising a round face, ptosis, short philtrum, Cupid's bow and prominent low-set ears, nasal speech and mild finger and toe anomalies. The prevalence is unknown but 8q21.11 microdeletion syndrome is rare. Microdeletions appear de novo or are inherited from affected parents in an autosomal dominant manner. |
