Turner Syndrome is a disorder that occurs when there is a complete or partial monosomy of the X chromosome. Turner Syndrome is associated with one of the following 3 types of karyotypic abnormalities
· 45,X karyotype ( in which no Barr bodies are seen in the buccal smear)
· mosaics (45, X cell plus one or more karyotypically normal or abnormal cell types)
· Structural abnormalities of the X chromosomes which result in partial monosomy ofthe X chromosome. E.g. deletion of one of the arms of the X chromosome.
