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A ring 18 chromosome(18r) karyotype is a rare disorder characterized by short stature, obesity, microcephaly, mental retardation, micropenis, cryptorchidism, hypertelorism, epicanthal folds, micrognathia, and small hands with short tapering fingers. A 22-month-old girl was referred to our department of pediatrics because of ptosis and delayed development. Karyotype revealed ring 18 and dicentric ring 18 chromosome(46,XX,r(18)[45]/45,XX,-18[7]/46,XX,dic r(18)[3]). Fluorescent in situ hybridization... |
