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G banding of chromosomes from a Ewing’s sarcoma showing the t(11.22)(q12.24) translocation. This tumour is also characterised by trisomy of chromosome 8 and 12 and loss of chromosome 16, frequently described secondary aberrations in the Ewing’s sarcoma family of tumours. Reproduced with the permission of P Roberts, Department of Cytogenetics, St James’s University Hospital, Leeds, UK.
