[Left micro-colon syndrome and hypothyroidism]

We report a case of neonatal intestinal obstruction with left microcolon and congenital hypothyroidism. Total relief of symptoms was obtained after 45 days of treatment by L-thyroxine and enemas. Congenital hypothyroidism, frequently associated with motor disorders of the gastrointestinal tract in neonates, has not been previously reported in association with small left colon syndrome.