The author observed rontgenographically the running caurse of Fallopian canal in 52 crania of adult japanese injecting contrastmedium into Fallopian canal from Foramen stylomastoideum in regarding to the forms of crania, shorthead or dolichocephalus, to the degree of pneumatisation of middle ear, and to the age.
The result was as follows;
1) Regarding to the relation between the middle ear pneumatisation and the form of cranium, the better pneumatisation was found in shorthead than in dolichocephallus. The former showed a good developed pneumatisation in 80% of cases.
2) The vertical type of the descending part of the facialnerve was perceived in 55% by Schuller's method, being most frequent.
The type, in which the second bending bent sharply was more frequent in dolochocephallus than in shorthead. This finding is interesting.
3) By the second method of roentgenography, which the author originated, the oblique type of the descending part of the facialnerve was most frequent (68%). The type, in which the second bending sharply bent, was found frequent in dolichocephallus than in shorthead by the same method.
4) On the relation between the middle ear pneumatisation and the running course of the Fallopian canal, observed by Schaller's method and author's second method, the sharply bending type, which is seemed to be abnormal, was more frequent among the poorly developed pneumatisation. The vertical type of the Fallopian canal through Schaller's method was found frequently in various type of pneumatisation, but the oblique type was almost absent in poorly developed type, and become increasingly frequent as pneumatisation better developed.
The vertical type by the author's second method become more frequent as the pneumatisation well developed. The oblique type was found often in all types of pneumatisation.
5) Regarding to the age, the relationship between the middle ear pneumatisation and the running course of the Fallopian canal was not significant.
These results were interesting for the judging of the running course of the Fallopian canal at the middle ear area by operation.
抄録全体を表示