A manual of modern surgery : an exposition of the accepted doctrines and approved operative procedures of the present time, for the use of students and practitioners . pathology these tumors re-semble hydrorachis or bifid spine. A meningocele, being a pouch of brain membranes containing sub-arachnoid fluid, resembles a cystic tumor of ordinary kind. Encephalocele is often associated with other congenital malforma-tions, and usually is more solid than the tumor just described. Whenan encephalocele has a cavity in its interior it is termed a hydren-cephalocele. The cavity may communicate with th
A manual of modern surgery : an exposition of the accepted doctrines and approved operative procedures of the present time, for the use of students and practitioners . pathology these tumors re-semble hydrorachis or bifid spine. A meningocele, being a pouch of brain membranes containing sub-arachnoid fluid, resembles a cystic tumor of ordinary kind. Encephalocele is often associated with other congenital malforma-tions, and usually is more solid than the tumor just described. Whenan encephalocele has a cavity in its interior it is termed a hydren-cephalocele. The cavity may communicate with the ventricles of thebrain. A fatal issue generally occurs in these congenital hernias of thebrain and its membranes, but the surgeon must think of them when diagnosticating; tumors of the partial or complete reduci-bility, their immobility, the loca-tion of the neck of the tumor uponthe cranial bones, the variation indistention as the child is quiet orexcited, and, in encephalocele, theoccasional existence of pulsationwill aid in the diagnosis. Pressure, aspiration and excis-ion are methods of treatment in-dicated, but are in many instances Cerebral meningocele. Hydrocephalus. Hydrocephalus is a dropsical condition of the brain, consisting ofan abundant accumulation of serous fluid in the ventricles or thearachnoid space, or in both. It is a chronic condition, usually occur-ring as a congenital disease. Acute hydrocephalus, so called, is ofdifferent pathology, for the term is variously applied by authors totubercular meningitis and to cerebral dropsy due to renal disease. 198 INFLAMMATION OF THE BRAIN 199 The amount of fluid in chronic hydrocephalus varies from half a pintto several pints, and produces enlargement of the head, especially inthe antero-posterior diameter, spreading of the sutures and thinningof the cranial bones. The peculiar squareness of the cranium andrelatively small face give the child a characteristic appearance. Theintracranial pressu
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