We report a case of solitary primary leptomeningeal glioma. The mass was totally removed under awake surgery. Intraoperatively, no parenchymal involvement was noted. Histopathological study revealed a predominant anaplastic oligodendroglioma component and a focal anaplastic astrocytoma component, which was consistent with an anaplastic oligoastrocytoma. Adjuvant tomotherapy was followed and the tumor has not recurred until 12 months after surgery. A focal type of primary leptomeningeal glioma is extremely rare. We report a rare case of solitary primary leptomeningeal anaplastic oligoastrocytoma.
Astrocytoma ; Glioma* ; Oligodendroglioma

No abstract available.
Astrocytoma* ; Paralysis* ; Pineal Gland*

This retrospective study was carried out on 57 children (34 boys and 23 girls, aged from 1 to 14 years old) with brain tumors (cerebral astrocytomas) treated by surgery and radiotherapy and chemotherapy at HCM city Cancer Hospital from Jan 1st 1997 to Dec 31st 2001. Results: common symptoms at the onset were intra-cranial hypertension and focal neurological dysfunction. All had only single tumor. The most common location was in the cerebellum, and then was in the hemispheres. The indication of adjuvant therapies depended on histological grades, child’s age extension of excision, performance status... 65% patients completed the treatment course, and the rest neither completed nor treated because of rapid progression of disease. The median survival of all patients depended on histological grades
Astrocytoma ; child ; Hypertension

No abstract available.
Astrocytoma* ; Tuberous Sclerosis*

Of the case of malignant astrocytoma, spontaneous transdural extension is very rare. Only several cases of transdural extension of primary intracranial tumor are reported. However, these cases are through the foramina of the skull base. We have experienced a case of malignant astrocytoma which directly extended out through the dura and calvarium near the pterion of the left side.
Astrocytoma* ; Skull ; Skull Base

No abstract available.
Astrocytoma* ; Tuberous Sclerosis*

Cerebellar astrocytomas have some characteristics such as benign histologic features, frequent cyst formation, tumors of early life and good postoperative prognosis. Cerebellar astrocytomas may arise from any part of cerebellum and tumors originated from vermis usually grew symmetrically in the vermis or invade the hemisphere. We recently experienced a case of cerebellar astrocytoma which entirely filled the 4th ventricle without evidence of tumor growth in the vermis or hemisphere. We report this case with its autopsy findings.
Astrocytoma* ; Autopsy ; Cerebellum ; Prognosis

Astrocytoma in the thalamus in not so frequent in incidence (1%). Moreover, bilateral thalamic tumor is rare. Certain tumors of the thalamus are considered resectable but most of thalamic tumors are thought to be untouchable. Bilateral thalamic astrocytoma with hydrocephalus was diagnosed by stereotactic biopsy and ventriculoperitoneal shunt operation was done with result of improvement. We report a case of astrocytoma in the bilateral thalamus with literature review.
Astrocytoma* ; Biopsy ; Hydrocephalus ; Incidence ; Thalamus* ; Ventriculoperitoneal Shunt

Tumors of central nervous system are common, especially in children. The most common primary tumor is astrocytoma. Study of microscopic features of astrocytoma could help to diagnose and assess histologically this type of tumor more precisely. Subjects include 122 patients with astrocytoma diagnosed at Department of Pathology, Cho Ray Hospital from June 2003 to June 2004. Histological criteria of these 122 cases were atypical nuclear: 122 cases (100%), endothelial proliferation: 69 (56.5%), necrosis: 36 (29.5%), mitoses: 17 (13.9%), micro cystic: 17 (13.9%), calcification: 6 (4.9%), pseudorosettes: 8 (6.5%). The criteria such as atypical nuclear, endothelial proliferation, necrosis, mitoses, and cellularity are important factors in the diagnosis and histological grading of astrocytoma
Astrocytoma ; Central Nervous System Neoplasms ; Diagnosis ; Child

Meningiomas and pilocytic astrocytomas are benign intracranial tumors. Pilocytic astrocytomas arises frequently at the posterior fossa in childhood. Meningiomas have several image findings, such as a dural tail sign, bony erosion, and sunburst appearance on angiography. However, pilocytic astrocytomas with these findings have been rarely reported. In this report, we describe a mass with typical image findings of a meningioma, but diagnosed as a supratentorial pilocytic astrocytoma with early anaplastic transformation.
Anaplasia ; Angiography ; Astrocytoma* ; Meningioma* ; Radiography ; Tail