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Unbalanced mosaic karyotypes with different structural abnormalities involving a common chromosome region: report of
M J Pettenati1, L A Teot, C Smith
1Department of Pediatrics, Bowman Gray School of Medicine of Wake Forest University, Winston-Salem, North Carolina.
American Journal of Medical Genetics
|February 1, 1993
Abstract:
We report on 2 cases with different de novo unbalanced mosaic karyotypes in which each cell line had a different structural abnormality involving a common chromosome region: 46,XX,del(11)(q23.3)/46,XX.-11, + der(11)t(11;?)(q23.3;?) and 46,X,idic(Xq)/46,X,idic(Xq),-12, + der(12)t(X;12)(p11.2;p13.3). Molecular-cytogenetic analysis confirmed the origin of the derivative 12 chromosome in the latter. We present a literature review of reports with mosaic cell lines of structural chromosome abnormalities that share the same chromosome breakpoint.