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R Stern, ST Widirstky, DH Wurster-Hill, RD Allen, KA Smith, GG Cornwell and CJ Cornell
Cycochemical, morphological, immunologic, and cytogenetic studies were
carried out on hand-mirror cells (HMC) from a mentally retarded patient
with a constitutional chromosome abnormality, 46,XX,r(21), and acute
lymphoblastic leukemia. Scanning electron and differential interference
contrast microscopy showed microspikes on the uropodia, but little evidence
of cellular motility, despite formation and disappearance of individual
uropodia in cell suspensions. The cells rosetted with sheep erythrocytes,
suggesting T-cell origin. Cells derived from the bone marrow (80% HMC)
showed a high degree of polyploidy (60%) and a bimodal chromosome number of
49 (49,XX,+10,-21, +3 rings) and 94 (6 no. 10, 3 no. 18, 2 no. 21
chromosomes, 3 ring chromosomes, plus 4 copies of each other chromosome).
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| Copyright © 1979 by American Society of Hematology Online ISSN: 1528-0020 | |||||||||