A 3 week old boy presented with abnormal thyroid function, and was-tre
ated with thyroxine. He developed multisystem disease including deafne
ss and nephrotic syndrome, and died aged 3 months. Carbohydrate defici
ent glycoprotein syndrome (CDGS) was diagnosed postmortem. CDGS should
be considered in all infants with apparently unrelated multiple clini
cal or biochemical abnormalities.