G. Prabhakar et al., COMPLEX KARYOTYPIC MOSAICISM AS A RESULT OF NONDISJUNCTION AND SUBSEQUENT CENTROMERE FISSION, Prenatal diagnosis, 14(7), 1994, pp. 595-598
Karyotypic discrepancy among four different cell types is described in
tissues derived from a pregnancy terminated because of chromosomal an
omalies. Chorionic villus cells demonstrated 46,XX (direct preparation
) and 46,XX/47,XX, + mar1 (cultured cells) karyotypes, while fetal ski
n fibroblasts had a karyotype of 47,XX, + 18 and the placenta showed a
triple mosaicism of 47,XX, + 18/47,XX, + mar1/48,XX, + 18, + mar2. Th
e origin of this complex chromosomal distribution and its significance
are discussed in comparison with findings in similar cases.