Although sporadic articles on suppuration of the petrous pyramid appeared in the literature previous to 1930, it was not until that year that articles, especially those of Eagleton, Friesner and Kopetsky, focused attention on the subject and established the condition as a clinical entity. Sufficient time has now elapsed for various observers to report series of cases, and the findings and conclusions in many of these do not correspond with the earlier observations.
This paper is based on a series of 30 consecutive cases in which operation was performed and pus was found in the pyramid. Cases in which infection could not be demonstrated or those in which the patient recovered spontaneously are not included. All but 3 of our patients had had a mastoid operation from a week to several months previously, and in 4 cases petrosal infection followed reinfection of a healed mastoid. In none of these 4
MOORHEAD RL, BAKER JP. SUPPURATION OF THE PETROUS PYRAMID WHEN AND HOW TO OPERATE: REPORT OF THIRTY CASES. Arch Otolaryngol. 1938;28(4):497–530. doi:10.1001/archotol.1938.00650040508001
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