. The American journal of roentgenology, radium therapy and nuclear medicine . Fig. 2. (After Cheatle.) Temporal bone of infant aged seven months, showing the dense type ofmastoid mass. B =mastoid mass, C=outer antral wall. protean types of disease with which weare acquainted. Specialists with wide ex-perience have come to realize that everycase of mastoid infection is a problem initself; that the clinical course and the indi-cations for surgical interference are widelyvaried; and that one case can very rarelybe compared accurately and in detail with another. Each case presents a distinctprobl
. The American journal of roentgenology, radium therapy and nuclear medicine . Fig. 2. (After Cheatle.) Temporal bone of infant aged seven months, showing the dense type ofmastoid mass. B =mastoid mass, C=outer antral wall. protean types of disease with which weare acquainted. Specialists with wide ex-perience have come to realize that everycase of mastoid infection is a problem initself; that the clinical course and the indi-cations for surgical interference are widelyvaried; and that one case can very rarelybe compared accurately and in detail with another. Each case presents a distinctproblem and a distinct special study. Thebasis for this wide variation seems to bemost probably the existence of markedfundamental differences in mastoid struc-ture. The use of the roentgen-raj examinationin the studv of mastoid disease is undoubt-. Fu u\l ; Temporal bone of adult aged 42, showing the persistent diploetic infantile type. B = mastoid mass, C = outer antral wall. Some Observations of Mastoid Structure
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