Prenatal diagnosis of a fetus with pure partial trisomy 1q32-44 due to a familial balanced rearrangement.
We diagnosed a pure partial trisomy of the long arm of chromosome 1 in a fetus with multiple malformations detected prenatally. The father was a carrier of a balanced rearrangement involving 46,XY,inv(1)(qter-->p36::q32-->qter::p36-->q32). The fetus had preaxial polydactyly, low-set ears, macrocephaly, a prominent forehead, a broad and flat nasal bridge, a small mouth, an arched palate, micrognathia and unilateral renal agenesis. The couple had previously an infant with the same phenotypic abnormalities. The aberration was initially detected on amniocentesis with GTG banding and was confirmed by fluorescence in situ hybridization (FISH). Our case and other published pure trisomy 1q32-44 cases showed similarities, which allowed the further delineation of the trisomy 1q syndrome.
Kímya
Yalçin
Y
Department of Obstetrics and Gynaecology, Uludagcaron University Medical Faculty, Turkey. ykimya@uludag.edu.tr
Yakut
Tahsin
T
Egelí
Unal
U
Ozerkan
Kemal
K
D000015:Abnormalities, Multiple / Q000235:genetics; D000328:Adult; D025063:Chromosome Disorders / Q000175:diagnosis*; D002878:Chromosomes, Human, Pair 1 / Q000235:genetics*; D005260:Female; D015321:Gene Rearrangement; D005865:Gestational Age; D006801:Humans; D017404:In Situ Hybridization, Fluorescence; D007621:Karyotyping; D011247:Pregnancy; D011296:Prenatal Diagnosis; D014178:Translocation, Genetic; D014314:Trisomy