astrocytoma

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astrocytoma

[‚as·trə‚sī′tōm·ə]
(medicine)
A slow-growing glial tumor made up of cells resembling astrocytes; often it will undergo malignant change and assume the appearance and growth characteristics of a glioblastoma.
References in periodicals archive ?
With this diagnosis an MRI brain was completed due to astrocytomas close association with tuberous sclerosis.
Optic nerve astrocytomas (ONAs) usually affect the visual pathway, mainly in the pediatric age group.
Zhang, "MR Imaging Features of Anaplastic Pleomorphic Xanthoastrocytoma Mimicking High-Grade Astrocytoma," American Journal of Neuroradiology, vol.
20% of oligodendrogliomas can have mass effect and calcification which are not common in astrocytomas. On MRI brain, LGGs are usually hypo intense on T1, and Hyper intense on T2 weighted images, with minimal or no contrast enhancement (figure 1).
Renal angiomyolipomas, cardiac rhabdomyomas, and subependymal giant cell astrocytomas are commonly observed in patients with tuberous sclerosis.
The most common histology was GBM (37%) followed by diffuse astrocytomas (15%).
They have a tendency to calcify and can progress into subependymal giant cell astrocytomas, which are histologically indistinguishable from SENs but distinguishable based on their larger size, higher growth rate, and potential for mass effect compared to the relatively static course of SENs [14, 15].
Ten cases harbored a BRAF fusion, including 44% of the pilocytic astrocytoma cases.
"Votubia tablets are approved for treatment of patients with non-cancerous brain tumors called Subependymal giant cell astrocytomas (SEGA).