The subject of infection of the petrous pyramid has been discussed among otologists for a sufficient time so that the typical, clearcut condition is now rather easily recognized. Otologists are now what might be called "pyramid minded" and are on the look-out for this condition, rather than being surprised when it is encountered.
The symptoms in the typical case have been repeatedly stressed: pain in the region of the eye, discharge from the ear or, its equivalent, from the mastoid wound, and some degree of sepsis. These are regarded as the cardinal signs; and yet how often is the typical case encountered? A review of the records of the last ten years shows that in approximately 50 per cent of the cases these signs are present and that in the remainder there is deviation from this pattern, often to a considerable degree. One should not expect all the signs to
MOORHEAD RL. SUPPURATION OF THE PETROUS PYRAMID. Arch Otolaryngol. 1940;32(5):845–852. doi:10.1001/archotol.1940.00660020852002
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