PT - JOURNAL ARTICLE AU - C Dacou-Voutetakis AU - A Sertedaki AU - M Maniatis-Christidis AU - C Sarri AU - G Karadima AU - M B Petersen AU - A Xaidara AU - M Kanariou AU - P Nicolaidou TI - Insulin dependent diabetes mellitus (IDDM) and autoimmune thyroiditis in a boy with a ring chromosome 18: additional evidence of autoimmunity or IDDM gene(s) on chromosome 18 AID - 10.1136/jmg.36.2.156 DP - 1999 Feb 01 TA - Journal of Medical Genetics PG - 156--158 VI - 36 IP - 2 4099 - http://jmg.bmj.com/content/36/2/156.short 4100 - http://jmg.bmj.com/content/36/2/156.full SO - J Med Genet1999 Feb 01; 36 AB - A 4 year 3 month old boy with insulin dependent diabetes mellitus (IDDM), autoimmune thyroiditis, slight mental retardation, facial dysmorphism, and a de novo ring chromosome 18 (deletion 18q22.3-18qter) is described. This unique association of defects could represent a chance association. Alternatively, the clinical features could be the result of the chromosomal aberration. If so, one could speculate that a gene or genes on chromosome 18 might act as a suppressor or activator of the autoimmune process by itself or in concert with other IDDM loci.