Gastrointestinal symptoms in myotonic dystrophy are increasingly obser
ved, but major intestinal movement disorders such as intestinal pseudo
-obstruction appear to be an infrequent complication. We describe a 13
-year-old boy who, after appendectomy, developed intestinal pseudo-obs
truction syndrome as the first clinical manifestation of myotonic dyst
rophy. He developed several similar episodes thereafter, which respond
ed to conservative measures. When a child with myotonic dystrophy pres
ents with an ileus, the diagnosis of intestinal pseudo-obstruction sho
uld be considered and therapy should then be conservative.