نتایج جستجو برای: cerebellar astrocytoma
تعداد نتایج: 35156 فیلتر نتایج به سال:
BACKGROUND Pilocytic astrocytomas occur predominantly in childhood. In contrast to the posterior fossa location, hypothalamo-chiasmatic pilocytic astrocytomas display a worse prognosis often leading to multiple surgical procedures and/or several lines of chemotherapy and radiotherapy to achieve long-term control. Hypothalamo-chiasmatic pilocytic astrocytomas and cerebellar pilocytic astrocytoma...
BACKGROUND Pilocytic astrocytoma can be challenging to diagnose. METHODS Its clinical presentations can differ, directly related to its size and location, and are relatively unreliable. Similarly, imaging findings also vary with the location of the pilocytic astrocytoma. RESULTS This review provides an overview of the different imaging findings regarding pilocytic astrocytomas using both co...
Multiple primitive intracranial tumors with different histological characteristics are uncommon. Although coexistence of a medulloblastoma with glial tumors has been reported in children, medulloblastoma is rarely found in adults, especially those older than 40 years of age. We present an extremely rare case of a medulloblastoma developing in a 40-year-old male undergoing maintenance chemothera...
To understand the control of glial tumor cell proliferation, we have examined the effects of neurons on a number of human and rodent glioma lines. These included C6, G26-24, U-251, HTB-16, and A-172 cells of astroglial lineage and G26-20 of bipotential astrocytic and oligodendrocytic lineage. Rapid, specific binding of granule neurons to the human A-172, HTB-16, and U-251 and mouse G26-24 cell ...
Fahr's disease is a rare entity characterized by abnormal calcification in the bilateral basal ganglion regions and cerebellum. Concurrence of Fahr's disease with brain tumor is associated with an even lower incidence; the present study describes the fifth such case, in which a 32-year-old female presented with a 1-month history of headache and unsteady walking. Pathology and imaging studies re...
A peculiar abnormality of the precentral cerebellar vein seen only in cystic astrocytoma of the vermis is reported. Implications of this angiographic finding are discussed. The importance of posterior fossa angiography (especially venography) in the diagnosis of posterior fossa mass lesions is emphasized.
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