"Isolated" radial ray defect may be due to Rothmund-Thomson syndrome.
Moss
C
C
Bacon
C J
CJ
Mueller
R F
RF
D000015:Abnormalities, Multiple / Q000235:genetics; D002869:Chromosome Aberrations / Q000235:genetics*; D025063:Chromosome Disorders; D004480:Ectromelia / Q000235:genetics*; D005808:Genes, Recessive; D006801:Humans; D007223:Infant; D008297:Male; D011884:Radius / Q000002:abnormalities*; D011038:Rothmund-Thomson Syndrome / Q000235:genetics*; D013577:Syndrome