[Temporary bone defect following cranial contusion in infants]

The authors describe an approximately 3.5 x 4 cm size cranial bone-defect, which was observed on the plane skull X-ray of a 27 months old child in the left sided frontal region following head injury. The defect decreased in size spontaneously one year later, and disappeared completely three years after the trauma. Similar observations about the spontaneously healing traumatic cranial bone-defect were not found in the Hungarian medical literature, and only scant publications could be revealed in the international scientific literature. The authors suggests that the spontaneously healing skull bone-defect develops following vascular lesions associated with the contusion. They suppose that these bone defects develop more often as they are revealed. Regarding that this condition most frequently does not produce neurological signs and symptoms, it might explain that the lesion is discovered rarely. The outcome of the disease is favourable and the differential diagnosis is important to the correct treatment.