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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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BCR-ABL1 gene fusion is seen in all of the following Except
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The correct answer is  Translocation between chromosome 9 and chromosome 22 leading to fusion of BCR gene with ABL1 gene is seen characteristically in chronic myeloid leukemia. However, this genetic signature is also seen in ALL where it poends a bad prognosis and in AML as per recent WHO update.