Piranit N. KantaputraChanin LimwongseChintana TochareontanapholApiwat MutiranguraUmnat MevateeVerayuth PraphanphojChiang Mai UniversityMahidol UniversityChulalongkorn UniversityRajanukul Institute2018-08-202018-08-202006-12-01American Journal of Medical Genetics, Part A. Vol.140, No.23 (2006), 2598-260215524833155248252-s2.0-33845236580https://repository.li.mahidol.ac.th/handle/20.500.14594/23467We report a patient with a unique combination of features, including microcephaly; mental retardation; poorly developed frontal lobes; hypoplastic pituitary gland; hypothyroidism; alopecia universalis; single maxillary central incisor; taurodontism; median palatal ridge; longitudinally grooved nails; and scoliosis. His unbalanced karyotype was found to be 45,XY,der(15;18)(q10;q10). The constellation of anomalies appears to represent a contiguous gene syndrome caused, at least in part, by deletion of TGIF and the gene responsible for hereditary hypotrichosis simplex. The phenotype of our patient differs other reported patients with del(18p). Possible explanations include (1) the effects of a different deleted region, (2) a positional effect caused by a gene close by, or (3) by interruption of a different gene resulting from chromosomal translocation. © 2006 Wiley-Liss, Inc.Mahidol UniversityMedicineConference PaperSCOPUS10.1002/ajmg.a.31386