title: Monosomy 7 and multipotential stem cell transformation.
abstract: Monosomy 7 was the sole karyotypic abnormality seen in a case of biphenotypic leukaemia involving both the myeloid and lymphoid lineages and in a case of de novo ALL undergoing a phenotypic shift to acute myeloid leukaemia at relapse. These observations suggest that monosomy 7 can be associated with transformation of a common lymphoid-myeloid progenitor cell.
mesh_terms: D000368:Aged; D002471:Cell Transformation, Neoplastic / Q000473:pathology*; D002675:Child, Preschool; D002869:Chromosome Aberrations / Q000473:pathology*; D002872:Chromosome Deletion; D025063:Chromosome Disorders; D002906:Chromosomes, Human, 6-12 and X; D006412:Hematopoietic Stem Cells / Q000473:pathology; D006801:Humans; D007945:Leukemia, Lymphoid / Q000235:genetics* / Q000473:pathology; D015470:Leukemia, Myeloid, Acute / Q000235:genetics* / Q000473:pathology; D008297:Male; D009006:Monosomy; D010641:Phenotype