alexa Loss of the Y chromosome from normal and neoplastic bone marrows. United Kingdom Cancer Cytogenetics Group (UKCCG)
Clinical Research

Clinical Research

Journal of Clinical Case Reports

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Abstract Loss of the Y chromosome is a feature of haematologically normal bone marrow in elderly males, but it is also found in haematological malignancy. We describe -Y as the sole karyotypic abnormality in 147 cases (66 from 802 unselected cases and a further 81 cases selected for -Y) with the following diagnoses: no haematological malignancy (N), myelodysplastic syndrome (MDS), acute myeloid leukaemia (AML), and myeloproliferative disorder (MPD). The frequency of -Y in the 802 unselected N, MDS, and AML cases was 7.7\%, 10.7\%, and 3.7\%, respectively. It could not be evaluated in MPD because there were too few cases. In N and MDS cases the frequency increased in a similar fashion over the age of 60 years. The 147 -Y cases showed a similar increase in distribution with advancing age in all four clinical categories. The degree of loss of Y (\% -Y cells per patient) increased with age in N and MPD patients but not in those with MDS or AML. This study suggests that in elderly men -Y is not indicative of malignancy and should not be considered as a marker of the malignant clone.
This article was published in Genes Chromosomes Cancer and referenced in Journal of Clinical Case Reports

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