PEIR Digital Library

Welcome to the Pathology Education Informational Resource (PEIR) Digital Library, a multidisciplinary public access image database for use in medical education.

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KARYOTYPE: HEMATOLOGIC: BONE MARROW: Chronic myelogenous leukemia, in transition, blast crisis, karyotype; Ph1 t(9;22), +8, i(17) are additional karyotypic changes from Ph chromosome indicating multistep in transformation to acute leukemia. Besa/Peter C. Nowell, M.D. Karyotype Slides