The primary intradural tumours of the optic nerve (Fibromatosis nervi optici) / by W. Gordon M. Byers.

  • Byers, W. Gordon M. (William Gordon Matthew)
Date:
[1901]
Catalogue details

Licence: In copyright

Credit: The primary intradural tumours of the optic nerve (Fibromatosis nervi optici) / by W. Gordon M. Byers. Source: Wellcome Collection.

Provider: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)

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    THE INTRACRANIAL CONNECTIONS OF THE INTRADURAL TUMOURS. Thus far as regards the orbital aspect of these tumours. A more careful study of the subject^ however, affords abundant evidence to shew that in a very large percentage of these cases the process which brings about tumefaction of the orbital portion of the nerve is by no means limited to this structure, but ex- tends in reality to a very 7mich larger field. The facts which go to prove this statement are briefly as follows : 1. A large number of reports record that a portion of the orbital tumour was left in the optic foramen in spite of the fact that the growth had been excised as close as possible to the entrance to the skull. In other words, only a part of a larger growth had been removed. 2. In studying the macroscopical appearances of the ex- cised orbital growths, one is struck at the outset by the fact that in a great many instances there is an incompleteness in their structure which can only be accounted for on the sup- position of an unexcised complementary portion within the skull. 3. The literature affords us a number of instances in which a post mortem examination revealed the intracranial conditions so soon after the excision of the orbital growth that the possibility of an extension backwards of the ^orbital neoplasm into the cranial cavity is altogether excluded on ac- count of the shortness of the period which elapsed between the primary operation and the after death examination. In those cases of this group where intracranial growths were also found it must be clear that one has to deal either with a single growth only developing at one and the same time within the orbit and within the cranial cavity, or else with a primary and secondary growth which had arisen during the hfe time of the patient. The latter, however, is but a modification of the former statement, for the extension may have occurred as well from the side of the brain as that from the orbit. It is interesting to study the records in these cases, which have been subjected to post mortem examination. Thev are as follows :* ^ .... *Heymann's case is here included though both (he orbital and intracranial con cluded IT ^T examination. Szokalski's ca-se is ex- cluded because the mterval between the P. M. exam, and the patients dSh doe. the orSr °' intracranial recurrence as was 'actS; the case ia
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