Myeloid sarcoma of the colon as initial presentation in acute promyelocytic leukemia:A case report a

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BACKGROUND Myeloid sarcoma(MS)rarely occurs in acute promyelocytic leukemia(APL)at onset,but it can develop in relapse cases,especially after APL treated with alltrans retinoic acid(ATRA).Therefore little is known about the clinical features and suitable
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