| A rare chromosomal anomaly syndrome resulting from a partial deletion of the long arm of chromosome 13. The syndrome has characteristics of developmental delay, variable degrees of intellectual disability, retinoblastoma and craniofacial dysmorphism (including micro/dolichocephaly, high and broad forehead, prominent eyebrows, thick, anteverted ear lobes, short nose with a broad nasal bridge and bulbous tip, prominent philtrum, large mouth with thin upper lip and thick, everted lower lip). Other features reported include high birth weight, macrocephaly, pinealoma, hepatomegaly, inguinal hernia and cryptorchidism. |