Films of 50 normal patients and 50 dry skulls were examined to detect lines which might stimulate a nasal fracture. These were visible on the occipito-mental view but on the lateral view any line which reaches the anterior cortex must be regarded as a fracture. The results of an analysis of 100 patients with trauma to the nasal bone are also presented. It is concluded that radiography of the nasal bone is an unnecessary examination unless requested by the E.N.T. surgeon, and this will in any case occur infrequently.

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Summary and conclusions A prospective study of 500 patients was performed to determine the reasons for requesting radiographs in an accident and emergency department. Most examinations were requested either to confirm a clinically suspected abnormality or because of difficulty in excluding a significant bone injury on clinical grounds alone. Several requests were also made to reassure the patient. Medicolegal reasons were relatively few, and those made purely because the doctor feared litigation probably accounted for only 5% of requests.

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