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Prenatal diagnosis of partial trisomy 22 derived from a maternal t(11; 22) (q23; q11)
S Sou1, T Takabayashi, H Sasaki
1Department of Obstetrics and Gynecology, Tohoku University School of Medicine, Sendai.
A fetus with partial trisomy 22 was detected by amniocentesis in a pregnant woman with balanced translocation, 46, XX, t(11; 22) (q23; q11). The aborted fetus had multiple congenital anomalies consisting of microcephaly, cleft lip and palate. The extra acrocentric chromosome was identified as der (22), t(11; 22) (q23; q11). The aborted fetus is compared with other trisomic cases described in literatures, and perinatal diagnosis of this case was discussed.
A fetus with partial trisomy 22 was detected by amniocentesis in a pregnant woman with balanced translocation, 46, XX, t(11; 22) (q23; q11). The aborted fetus had multiple congenital anomalies consisting of microcephaly, cleft lip and palate. The extra acrocentric chromosome was identified as der (22), t(11; 22) (q23; q11). The aborted fetus is compared with other trisomic cases described in literatures, and perinatal diagnosis of this case was discussed.