[Enlarging fractures of skull bones. Apropos of 2 cases].

The authors report two cases of children, who had a severe head injury with large skull fracture. If neurological evolution was good, on the other hand, skull fracture went on to develop, to give a bone defect with a leptomeningeal cyst of arachnoidal origin, as it is pointed out by the classical authors. The authors insist upon the specificity of this entity in childhood, and upon the necessity to observe by repeated clinical and radiological examinations any young child who have a large skull fracture.