| A chromosomal anomaly involving terminal deletion of the long arm of chromosome 10 resulting in characteristics of facial dysmorphism, pre and postnatal growth retardation, cardiac and genital anomalies and developmental delay. Prevalence is unknown but around 40 cases have been described in the literature so far. Genital abnormalities have been mostly reported in males, psychomotor retardation (generally described as mild) was present in all reported cases. Distal monosomy 10q results from a subterminal 10q deletion with breakpoints in the 10q25 or 10q26 band leading to partial monosomy for the genes located in this area. Most of the reported cases involved de novo terminal deletions resulting from abnormal non-allelic homolog recombination during meiosis. |
