to collapse. The effusion is frequently distributed uniformly to both lateral ventricles, but it may be greater on one side than the other, or in one pos- terior horn than in the other. The foramen of Monro is enlarged, sometimes to 3 or 4 cm. in diameter. The third ventricle is dilated, sometimes. Beats by Dre headphones sale also the aqueduct of Sylvius and thereby the fourth ventricle. The distension of the skull may be uniform, or premature and partial synostosis may cause more or less asymmetry. The sutures of the skull are wide, the font. Beats by Dre studio headphones anelles are uncommonly large, and the frontal fontanelle often extends to the root of the nose. The cranial bones are thin, flexible, transparent and glistening. Ossification of these bones, if . monster beats headphones sale http://www.beatsdre-dre.com discount Beats by Dre headphones it occurs at all, requires many years for its completion, partly because of the outgrowth of long serrated processes on the border of the bone, partly because of the development of new points of oss. monster beats headphones sale i- fication within the sutures and fontanelles the so-called Wormian bones (Virchow). Under the influence of the effusion the brain substance is reduced, sometimes from 2 or 3 cm. to a few millimeters, the gyri are sepa- rated,. Beats by Dre solo hd and the furrows obliterated. The brain is flattened at the base, soft, and atrophic; the cerebellum is frequently atrophic or may be altogether absent, in other cases it appears asymmetric or hypertrophied (Chiari). In marked hydrocephalus the hypertrophic cerebellum may be pressed down into the vertebral canal and resemble a cervical spina bifida, although it is in fact an encephalocele. In the walls of the ventricles, in the meninges, and in the plexus the most manifold changes occur, such as thickenings, granulations, or net-like proliferations, which are of inflammatory origin. The cerebral nerves are often atrophic, and in some few case
