Celep Eyüpoğlu, FigenAkkoyunlu Sünnetçi, DenizCine, NaciSavli, HakanÖktenGülaçikgöz, E.Sönmez, Fatma Müjgan2025-10-242025-10-2420141015-8146https://hdl.handle.net/20.500.12899/3245Array-CGH and clinical findings in a patient with a small supernumerary r(8) mosaicism: Small supernumerary ring chromosomes (sSRC) represent a subset of small supernumerary marker chromosomes (sSMC) where r(8) is relatively common. The phcnotype sSRC(8) ranges from almost normal to variable degrees of abnormalities in mosaic or non-mosaic conditions. We present a new patient of de novo mosaic supernumerary ring chromosome 8 which has trisomy of a region of chromosome 8pll.21-q21.13. Mosaicism for a ring chromosome was showed by routine karyotyping that revealed a karyotype of mos47XY,+r(?) [47]/46 XY [36] and we performed array comparative genomic hybridization (array-CGH) in order to precisely define the extension about chromosomal origin of the duplicated region in a patient. Array-CGH analysis confirmed that the sSRC derived a 43.921 Mb genomic gain of chromosome 8 (pll.21-q21.13). Common clinical features of the patient included multiple congenital anomalies, developmental delay, thoracolumbar scoliosis, mild pulmonary stenosis, laryngomalacia, hypospadias and atypical facial appearance. With this study a patient involving mosaic trisomy 8pll.21-q21.13 along with clinical properties, is described and compared to previously reported cases involving partial trisomy 8q. © 2014 Elsevier B.V., All rights reserved.eninfo:eu-repo/semantics/closedAccessArray-CGHMosaicismPartial trisomy 8Small supernumerary ring chromosome 8Article253305313253658532-s2.0-84908155792N/A