Highgrade Astrocytomas

High-grade astrocytomas represent a rare group of primary brain tumors in children. While the majority of pediatric astrocytomas occur in the posterior fossa, the minority are high-grade, representing 4-8% of all cerebellar astrocytomas [14,15]. Supratentorial astrocytomas, while less common than those in the infraten-torial space, are more likely to be pathologically high-grade, with 20% of all hemispheric tumors being high-grade gliomas [16]. Anaplastic (WHO Grade III) gliomas histologically show marked nuclear pleomorphism, anaplasia and hyperchromasia, with variable degrees of mitoses and endothelial proliferation, while glioblastoma multiforme (WHO Grade IV) displays similar characteristics, with areas of necrosis.

Cure Your Yeast Infection For Good

Cure Your Yeast Infection For Good

The term vaginitis is one that is applied to any inflammation or infection of the vagina, and there are many different conditions that are categorized together under this ‘broad’ heading, including bacterial vaginosis, trichomoniasis and non-infectious vaginitis.

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