PT - JOURNAL ARTICLE AU - Venugopalan, Poothirikovil AU - Kenue, Ravinder K. TI - Ring chromosome 13 in an Omani infant boy with mental retardation and multiple congenital anomalies DP - 2001 Sep 01 TA - Saudi Medical Journal PG - 800--803 VI - 22 IP - 9 4099 - http://smj.org.sa/content/22/9/800.short 4100 - http://smj.org.sa/content/22/9/800.full SO - Saudi Med J2001 Sep 01; 22 AB - An Omani infant boy with severe physical and psychomotor retardation, facial dysmorphism, and anomalies of the cardiovascular and genito-urinary systems is described. The chromosomal analysis revealed a 46, XY, r (13) (p11;q34) karyotype. The cytogenetic basis of this rare abnormality is outlined and phenotypic features are compared with published reports.