Further Clinical Delineation of Chromosome 1q21Microduplication Syndrome: Robin Sequence as an Under-Recognized Association in Chromosomal Microdeletions and Duplications.

Robin sequence (RS) has been reported in association with single gene disorders and chromosomal abnormalities; however, it has not previously been described in connection with chromosome 1q21 microduplication. We present the first known case of a neonate diagnosed with chromosome 1q21.1 microduplication syndrome and RS requiring surgical airway intervention. This case demonstrates the value of genetic testing in cases of RS presenting with other congenital anomalies.