title: Partial trisomy 1 with congenital hydrocephalus and hypogammaglobulinemia: report of one case.
abstract: We report a male patient with a 46, XY, der (11) t (1; 11) (q31; q25) karyotype due to de novo unbalanced translocation. The boy had facial dysmorphism including prominent wide forehead, short bilateral palpebral fissures, broad nasal bridge, low set and malformed ears, digitalization of thumbs, and small testes. Besides, he also suffered from congenital hydrocephalus and hypogammaglobulinemia, which have not been described in trisomy 1q syndrome. The additional chromatin material on the long arm of chromosome 11 segment was derived from chromosome 1, as proved by high-resolution banding and multiple-color FISH study. This case report allows a further delineation of the trisomy 1q syndrome.
authors.affiliation: Department of Pediatrics, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan. hwu@ha.mc.ntu.edu.tw
authors.forename: Wuh-Liang
authors.initials: WL
authors.lastname: Hwu
authors.forename: Pao-Lin
authors.initials: PL
authors.lastname: Kuo
authors.forename: Yeh-Ting
authors.initials: YT
authors.lastname: Hung
authors.forename: Yin-Hsiu
authors.initials: YH
authors.lastname: Chien
authors.forename: Shao-Yin
authors.initials: SY
authors.lastname: Chu
mesh_terms: D000015:Abnormalities, Multiple / Q000235:genetics* / Q000473:pathology; D000361:Agammaglobulinemia / Q000473:pathology*; D002878:Chromosomes, Human, Pair 1 / Q000235:genetics*; D002880:Chromosomes, Human, Pair 11 / Q000235:genetics; D006344:Heart Septal Defects, Atrial / Q000473:pathology / Q000601:surgery; D006801:Humans; D006849:Hydrocephalus / Q000473:pathology*; D017404:In Situ Hybridization, Fluorescence; D007223:Infant; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D007234:Infant, Premature; D007621:Karyotyping; D008297:Male; D014178:Translocation, Genetic; D014314:Trisomy