We report on a 5-year-old boy with failure to thrive, mental retardation, a broad nose, hypertelorism, slight antimongoloid slant palpebral fissures, mild ptosis, microphthalmia, short and wide neck, apparently acyanotic tetralogy of Fallot, dislocation of the left hip, generalized linear and patchy hyperpigmentation, micropenis, and undescended testes. He had mosaicism of 46,XY/47,XY, + 14 in a ratio of 3:1. Comparisons are made with the other reports of trisomy 14 mosaicism and relationship to incontinentia pigmenti.

We report on an infant with double trisomy 48,XXX, + 18. She presented with manifestations of trisomy 18: prominent occiput, microphthalmia, small mouth, micrognathia, malformed ears, congenital heart defect, overlapping fingers, talipes equinovarus, and rockerbottom feet. An extra palmar crease was present only on the right hand. This patient was alive at 12 months. The clinical manifestations are compared with those of 10 previously reported cases.

No abstract