Partial duplication of distal 17q.
A male propositus and an older sister had a similar pattern of congenital anomalies, including facial asymmetry with hypertelorism, frontal bossing and temporal narrowness, a broad nasal bridge, epicanthal folds, a wide mouth with a thin upper lip, micrognathia, webbed neck, low-set posteriorly angulated ears, and an abnormal hairline. There was also postaxial polydactyly, flexion contractures of the digits, hypotonia, and a congenital heart anomaly. The propositus also had renal anomalies whereas the sister did not, and the sister had a cleft lip and palate not present in her brother. The propositus and a subsequent fetus identified through genetic amniocentesis were determined to have a 46, XY, -18, +der(18),t(17;18)(q25.1;q23)mat chromosome constitution. Clinical findings are compared to those of other reported cases of dup(17q).
D000015:Abnormalities, Multiple / Q000235:genetics*; D001842:Bone and Bones / Q000002:abnormalities; D002675:Child, Preschool; D002869:Chromosome Aberrations; D002902:Chromosomes, Human, 16-18; D005145:Face / Q000002:abnormalities; D005260:Female; D006330:Heart Defects, Congenital / Q000235:genetics; D006801:Humans; D007223:Infant; D008297:Male; D014178:Translocation, Genetic