Long survival in a 69,XXY triploid male

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Abstract
We report on an infant with a 69,XXY chromosone constitution who survived for 10½ months; this is the longest survival reported with this condition to date. The infrequency of this disorder, data on natural history, and improved survival, possibly due to better management of respiratory illness and prematurity, are all factors worth noting in counseling on such rare conditions. Genotyping demonstrated the extra genome to be of maternal origin.