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1.  Subcortical infarction resulting in acquired stuttering 
Stuttering is an uncommon presentation of acute stroke. Reported cases have often been associated with left sided cortical lesions, aphasia, and difficulties with other non-linguistic tests of rhythmic motor control. Three patients with subcortical lesions resulting in stuttering are discussed. In one patient the ability to perform time estimations with a computerised repetitive time estimation task was characterised.
One patient had a pontine infarct with clinical evidence of cerebellar dysfunction. A second patient had a left basal ganglionic infarct and a disruption of timing estimation. A third patient had a left subcortical infarct and a mild aphasia.
These findings expand the reported distribution of infarction that can result in acquired stuttering. Subcortical mechanisms of speech control and timing may contribute to the pathophysiology of acquired stuttering.

PMCID: PMC1737123  PMID: 10990523
3.  Measurement of total circulating blood volume following subarachnoid haemorrhage: methodological aspects. 
The total circulating blood volume (TCBV) and total body/venous haematocrit ratio (Htb/Hv) was determined by simultaneous measurement of the red cell volume (RCV) and the plasma volume (PV) in 10 subarachnoid haemorrhage (SAH) patients, 10 supine bedresting control patients and 20 ambulant out-patients. The mean Htb/Hv of the SAH patients, 0.866, was found to be significantly lower than that of the supine controls, 0.908, and the ambulant patients, 0.909, (p less than 0.01). Using the ratio 0.866 the total circulating blood volume of the SAH patients was calculated from either their RCV or their PV and compared with their measured TCBV. Expressed as a percentage of measured TCBV the mean errors of these single volume determinations were 2.84% and 1.76% respectively. The significance of these changes in the Htb/Hv ratio of SAH patients is discussed in relation to the circulatory disturbances they suffer.
PMCID: PMC1032343  PMID: 3668563
4.  Schizophrenic psychosis associated with aqueduct stenosis in adults. 
The case histories of five adult patients with hydrocephalus and aqueduct stenosis are presented. All the cases were associated with prominent psychotic symptoms (delusions, hallucinations or thought disorder). In the three cases where operative intervention was carried out the diagnosis was made in adult life. Using the Present State Examination all five cases were classified as having schizophrenic psychosis. The possible reasons for this association are discussed.
PMCID: PMC1027601  PMID: 6644313
5.  Behaviour disturbances during recovery from herpes simplex encephalitis. 
Bizarre behaviour disturbances in four patients occurring during incomplete recovery from herpes simplex encephalitis are described. Some aspects of their behaviour were similar to that originally described by Klüver and Bucy in monkeys following bilateral temporal lobectomy. Previous reports of behavioural disturbances in man after herpes simplex encephalitis are reviewed and attention drawn to the aggressive and disruptive behaviour that is often seen. With the reduced mortality in herpes simplex encephalitis in recent years it is possible that behaviour disturbances such as those described here will be seen more frequently.
PMCID: PMC1027562  PMID: 6619889
6.  Gowers' syringal haemorrhage 
The second case of Gowers' syringal haemorrhage, successfully treated by surgery, and the first such case in a child, is described. It is suggested that the very slow development of haematomyelia within an existing hydrosyringomyelia may originate from a torn intraspinal vein, deprived of its normal neural and glial support.
PMCID: PMC494646  PMID: 4545391
7.  Cranial and spinal meningiomas in a pair of identical twin boys 
A unique set of identical twin boys with spinal and intracranial meningiomas is described. Three distinct spinal tumours and one intracranial one were removed surgically. One intracranial meningioma has been symptomless, so far. The red cell and leucocyte groups of the two patients were found to be identical, and the probability of their being monozygous was estimated from these data as being 0·932 (Appendix).
PMCID: PMC494335  PMID: 4714099
8.  A case of GM2 gangliosidosis of late onset 
A case of GM2-gangliosidosis commencing by the age of 5 years is described, in which hyperacusis, dementia, and fits were prominent clinical features. In addition to the typical ganglioside pattern on thin layer chromatography and the presence of membranous bodies in electron microscopic studies and characteristic histology and histochemistry, there was biochemical evidence of a gross reduction in heat-labile hexosaminidase activity in white blood cells and brain. A younger unaffected sibling showed the same enzyme defect in white blood cells.
PMCID: PMC494150  PMID: 5084137

Results 1-8 (8)