EEG were taken in 27 cases of juvenile endemic goiter and in 5 cases of acute goiter in endemic areas. These conditions, which may be equated nosologically, are virtually always marked by bioelectric changes, which continue even after the thyroid swelling has subsided. In the patients with juvenile endemic goiter the EEG was pathologic in 26 cases (96.3%) and borderline in 1 case. The most frequent changes were theta rhythms at 4–5 cps in 14 cases and at 5–7 cps in 9 other cases. In 3 tracings theta rhythms were associated with delta potentials. In 24 cases potentials with sharp, spike and spike and wave patterns were also present. In all 5 patients presenting acute goiter EEG changes were observed: theta rhythms at 4–5 cps in 1 case, at 5–7 cps in 2 cases and theta rhythms associated with delta waves in 2 other cases. Sharp waves were present in 4 cases. These EEG patterns do not tally with those observed by other workers in so-called primary hyper- and hypothyroidism but they do tally witn those seen in the secondary conditions in which it is accepted that a diencephalohypophyseal disturbance underlies the changes. It is concluded that the EEG both in acute and in juvenile endemic goiter reveals brain signs, regardless of the thyroid function.
Intraventricular neoplasms are uncommon CNS masses, representing only 10% of all tumours. Previous studies of intraventricular neoplasms have shown consistent trends in tumour location and in the age of patient presentation. Within the lateral ventricle, specific regions can be identified as sites of predilection for each particular tumour. It was found that these tumours tend to occur in natural age-related groupings. Meningiomas of the lateral ventricles of the brain are rare tumours. The incidence of this tumour type is very low, since they account for only 0.2% of all intracranial neoplasms and 0.5-5% of all intracranial meningiomas. We present a case of an intraventricular meningioma arising from the trigone in a young adult and discuss the available literature on intraventricular meningiomas and its differential diagnosis.
Meningioma del ventricolo laterale in giovane adultaAspetti RM e diagnosi differenziale RIASSUNTO -Le neoplasie intraventricolari sono masse non comuni del sistema nervosa centrale, rappresentando soltanto illO% di tutti i tumori. Precedenti studi sulle neoplasie intraventricolari hanno dimostrato una tendenza consistente per quanta concerne la sede del tumore e !'eta di insorgenza del paziente. Nell'ambito del ventricolo laterale, possono essere identificate specifiche regioni come sede di predilezione per ciascun tumore. E stato altresi riscontrato che questi tumori tendono a manifestarsi in diversi specifici gruppi per eta. I meningiomi dei ventricoli laterali dell'encefalo sono tumori rari. La toro incidenza e molto bassa; infatti essi rappresentano so/tanto lo 0,2% di tutte le neoplasie intracraniche e lo 0,5-5% di tutti i meningiomi intracranici. Presentiamo il caso di un meningioma intraventricolare ad origine dal trigona in una giovane paziente adulta e discutiamo la letteratura a disposizione riguardante i meningiomi intraventricolari e la toro diagnosi differenziale.
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