Patau syndrome


JABL: The presence of an additional (third) chromosome on an otherwise diploid chromosome 13 with variable abnormalities, most characteristic of which are microcephaly, microphthalmia, hypertelorism, cleft lip or palate, polydactyly, and cardiovascular, genitourinary, and neurological abnormalities. It is one of the most frequent causes of perinatal deaths.,NCI: A chromosomal abnormality characterized by the presence of three copies of genetic material for chromosome 13, instead of the normal two. It leads to a variety of abnormalities that include mental retardation, microcephaly, low-set ears, eye structural defects, polydactyly, and limb abnormalities.

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