RT Journal Article SR Electronic T1 Ring chromosome 13 in an Omani infant boy with mental retardation and multiple congenital anomalies JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 800 OP 803 VO 22 IS 9 A1 Venugopalan, Poothirikovil A1 Kenue, Ravinder K. YR 2001 UL http://smj.org.sa/content/22/9/800.abstract 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.