Brain surgery . Fig. 42. —The [nferior Surface of the Brain from a Case of Sclerotic Atrophyof the Left Hemisphere. The frontal lobe is not greatly affected. The lefttemporal lobe is very much smaller than the right one. The right hemisphere ofthe cerebellum is atrophic. The left pyramid of the medulla is smaller than theright one. 132 BRAIN SURGERY. Hydrocephalus with extreme dilatation of the ven-tricles, so that the brain tissue is reduced to a merewall about the cavity. 5 cases. Unilateral hydrocephalus, 1 case. These are the conditions found at death in casespresenting the clinical featur
Brain surgery . Fig. 42. —The [nferior Surface of the Brain from a Case of Sclerotic Atrophyof the Left Hemisphere. The frontal lobe is not greatly affected. The lefttemporal lobe is very much smaller than the right one. The right hemisphere ofthe cerebellum is atrophic. The left pyramid of the medulla is smaller than theright one. 132 BRAIN SURGERY. Hydrocephalus with extreme dilatation of the ven-tricles, so that the brain tissue is reduced to a merewall about the cavity. 5 cases. Unilateral hydrocephalus, 1 case. These are the conditions found at death in casespresenting the clinical features just studied. It isevident that they have this in common, namely, acondition of atrophy of the brain. The origin of this. Fig. 43. —Distentoin of the Ventricles in a Case of Hydrocephalus; a frontalsection being made through both hemispheres at the posterior part of the opticthalamus, aa. Lateral ventricles; 6, descending horns of the lateral ventricles;c, third ventricle; d, middle commissure.—Delafield and Prudden. atrophy is not always clear. In some cases it is clearlycongenital and due to a maldevelopment of the em-bryo. In other cases it is clearly traceable to injuriesat birth. Again, in other cases it must be ascribed toaffections of various kinds, such as inflammations ofthe membranes, or of the brain substance, or vascularlesions and their consequences, such as occur in is not always possible, in a given case, to deter- TREPHINING FOR IMBECILITY. 133 mine clinically the origin of the disease. For theabsence of a history of trauma at delivery does notexclude necessarily a congenital lesion. And the ex-istence of certain symptoms in acquired cases doesnot always enable one to determ
Size: 1707px × 1464px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookidbrainsur, booksubjectbrain
