The localising value of optic neuritis in intracranial tumour / by J.M. Martin.

  • Martin, J.M.
Date:
[1897]
Catalogue details

Licence: Public Domain Mark

Credit: The localising value of optic neuritis in intracranial tumour / by J.M. Martin. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    It has always been stated tliat the male sex is more liable to intracranial growths than is the female sex. The numbers in my series are as follows :— Table I Position of tumour. Male. Female. Sex not stated. Total. Frontal 31 17 13 61 Temporo-sphenoidal 13 10 5 28 Motor area 77 22 22 121 Parieto-oecipital 19 10 8 37 Multiple 18 9 1 28 Basal ganglia 20 12 4 36 Corpus callosum ... 7 5 1 13 Centrum ovale 19 10 1 30 Corpora quadrigemina 12 3 0 15 Pituitary 13 9 4 26 Crura 3 1 1 5 Pons and medulla 29 11 4 44 Cerebellum 82 34 22 138 General 10 7 2 19 Total 353 160 88 601 So that of 513 cases of intra-cranial tumour 68'8 per cent, were males and 31'2 per cent, were females; that is, the male sex is more than twice as liable as the female sex to intra-cranial growth. Having here given my first table it will perhaps be well at this point to define the regions I have adopted. Frontal— those tumours situated in front of the ascending frontal convolution externally, and as far back as the genu of the corpus callosum internally. Temporo-spbenoidal—those situated in the part of the cerebrum below the fissure of Sylvius and limited posteriorly by a line drawn from the posterior end of the fissure of Sylvius above to the lower end of the ex-occipital fissure below on the outer surface, and by the calcarine fissure on the mesial surface. Motor area— those situated in the precentral, post-central, and paracentral convolutions and their immediate neighbourhood. Parieto- occipital—those situated in or near the remaining cortex of the brain. As regards the remainder, all that need be said is that they affect only or chiefly the structures under the names of which they appear. Those included under “ general ” were either too diffuse to be put under any more definite heading or else their actual position was not stated in the report from which I obtained my abstract. The nature of the growths in each position will be found in the next table (Table II.); the significance of the small