Definition of Isochromosome
Isochromosome: An abnormal chromosome with two identical arms due to duplication of one arm and loss of the other arm. Isochromosomes are found in some girls with Turner syndrome, patients with the Pallister-Killian syndrome, and some tumors.
Source: MedTerms™ Medical Dictionaryhttp://www.medterms.com/script/main/art.asp?articlekey=4055
Last Editorial Review: 12/24/2003
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