The medical diseases of children . s of intracranial tumours in children, thecerebellum is the most frequently affected part of the brain. Anyregion, however, below the tentorium, is a common place for a tumour. 492 DISEASES OP THE NERVOUS SYSTEM while supratentorial tumours giving rise to clinical signs are extremelyrare in childhood. Certain difficulties in the diagnosis and localization of a growth areparticularly marked in children. In the first place, localizing signs areapt to be less definite in children than in adults, for the various partsof the brain are not in childhood so specializ
The medical diseases of children . s of intracranial tumours in children, thecerebellum is the most frequently affected part of the brain. Anyregion, however, below the tentorium, is a common place for a tumour. 492 DISEASES OP THE NERVOUS SYSTEM while supratentorial tumours giving rise to clinical signs are extremelyrare in childhood. Certain difficulties in the diagnosis and localization of a growth areparticularly marked in children. In the first place, localizing signs areapt to be less definite in children than in adults, for the various partsof the brain are not in childhood so specialized for their particularfunctions as they are later in life, and a functional compensationreadily occurs to deal with any localized destruction of brain larger lesion is therefore necessary in a child than in an adult toproduce the same degree of loss of function ; and inasmuch as nearlyall tumours in children are subtentorial, the onset of hydrocephalusis frequent and may cause death before localizing signs are Cerebellar Tilt of Head. On the other hand, certain false localizing signs are peculiarly aptto be present. Unilateral convulsions may be of no localizing value,as they may occur merely as the result of the hydrocephalus the same cause a double hemiplegia may rapidly signs may also be concealed owing to the impossibility ofcarrying out any tests which are at all elaborate. A great functionalexaggeration of some symptom due to organic disease may mask itstrue character. For instance, slight weakness of an arm due to anoncoming hemiplegia may be exaggerated into a total flaccid paralysisof the limb. There is, however, one particularly helpful sign in some cases of INTRACRANIAL TUMOURS 493 intracranial growth in children, namely, local bulging of the is best marked in cerebellar cases, and is present in the majorityof this group. Examination of the surface of the skull should neverbe omitted in dealing with cas
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectpediatrics, bookyear1
