neuroectodermal tumors primitive/seizures

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A 7-year-old girl with recurrent episodes of abdominal pain, seizures, and loss of vision: Primary diffuse leptomeningeal primitive neuroectodermal tumor masquerading as chronic meningitis.

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[CNS primitive neuroectodermal tumor suspected as a secondary recurrence after radiation therapy for medulloblastoma:a case report].

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We report a case of a suspected secondary central nervous system(CNS)primitive neuroectodermal tumor(PNET)that developed 25 years after radiation therapy for a medulloblastoma of the cerebellum. At 5 years of age, the patient underwent craniotomy and subsequent radiation therapy of the whole

Long-term relapse-free survival with supratentorial primitive neuroectodermal tumor in an adult: a case report.

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OBJECTIVE In adults, supratentorial primitive neuroectodermal tumor (sPNET) is a very rare undifferentiated embryoblastic neoplasm. Prognosis is worse in comparison to infratentorial medulloblastoma. Older age appears to be prognostically favorable. At present, 5-year survival rates remain below 50%

[Primitive neuroectodermal tumor arising 8 years after chemotherapy and radiotherapy for acute lymphoblastic leukemia: case report].

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We report a case of primitive neuroectodermal tumor (PNET) arising 8 years after chemotherapy and radiotherapy for acute lymphoblastic leukemia. A 15-year-old boy with a history of acute lymphoblastic leukemia, at the age of 7, underwent chemotherapy and 14Gy of radiotherapy to the whole brain. He

Primary intracranial dural-based Ewing sarcoma/peripheral primitive neuroectodermal tumor mimicking a meningioma: A rare tumor with review of literature.

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Ewing sarcoma/peripheral primitive neuroectodermal tumor (ES/pPNET) is a malignant small, round cell tumor arising from bone and soft tissue in children and young adults. It can occur at osseous and extraosseous sites. Its usual locations are diaphysis of long bones followed by pelvis, ribs,

Intractable seizures associated with brain tumor in childhood: lesionectomy and seizure outcome.

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The authors retrospectively reviewed ten pediatric brain tumor patients with intractable seizures who underwent lesionectomy without intentional identification and resection of the epileptogenic region to assess the clinical features and seizure outcome after lesionectomy in such patients. Seizures

Case of a miniature dachshund with a primitive neuroectodermal tumor confined to the forebrain region treated with a combination of surgery and chemotherapy.

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A miniature dachshund aged 9 years and 7 months with a history of polyuria/polydipsia and depression was referred. General physical and neurological examinations revealed no obvious abnormalities. MRI of the brain revealed a large space-occupying lesion in the left frontal lobe. This was surgically

Primary leptomeningeal primitive neuroectodermal tumor: A difficult entity to diagnose.

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A 25-year-old male presented with difficulty in walking, loss of vision, and seizures. A clinical possibility of craniospinal meningeal pathology was considered. On computed tomography (CT) scan and magnetic resonance imaging, there was an enhancement of leptomeninges with few ring-enhancing lesions

Family history of cancer and seizures in young children with brain tumors: a report from the Childrens Cancer Group (United States and Canada).

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The occurrence of cancer and neurological disorders in first- and second-degree relatives of children in the United States and Canada diagnosed with brain tumor before age six was investigated. A pair-matched case-control study with 155 astrocytoma and 166 primitive neuroectodermal tumor (PNET)

Pediatric Primary Diffuse Leptomeningeal Primitive Neuroectodermal Tumor: A Case Report and Literature Review.

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BACKGROUND Primary diffuse leptomeningeal primitive neuroectodermal tumor (PDL PNET) is extremely rare, with only 19 cases reported in the literature to date. We present a case of a child with rapidly progressive PDL PNET and a literature review. A 10-year-old boy presented with mood lability,

Ependymomas and ependymoblastomas in children.

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The authors analyze histologically verified cases of ependymoma and ependymoblastoma (malignant ependymoma) occurring in children in Connecticut from 1935 to 1973. Of the 488 central nervous system tumors diagnosed in that period, 44 (9%) of the 467 intracranial neoplasms and five (24%) of the 21

Epilepsy due to a temporal ganglioglioma and its subsequent malignant transformation into a primitive neuroectodermal tumor.

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BACKGROUND Gangliogliomas (GGs) are rare brain tumors, and their malignant changes are still less frequent. In these cases, almost always the malignant component is the glial one. However, there are few cases in which the neuronal component exhibits malignant transformation. METHODS We described a

A case of canine primitive neuroectodermal tumor (PNET).

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A 2-year and 6 month-old, female, Golden Retriever showed circling behavior and seizure. By magnetic resonance imaging (MRI) examination, a mass was found on the surface of the left cerebral hemisphere, invading to the left temporal muscle. The skull bone between them was destroyed. The dog was

Infratentorial medulloepithelioma with divergent differentiation: Possibly a predictor of poor outcome.

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Medulloepitheliomas (WHO grade IV) are rare, malignant embryonal tumors of pediatric population, classified under the central nervous system (CNS) primitive neuroectodermal tumors (PNET). Histologically, these tumors are characterized by neoplastic neuroepithelium recapitulating the embryonic neural

[The problem of early diagnosis of brain tumours causing seizures only (author's transl)].

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The diagnosis of brain tumour could not be made in 91 cases at the first investigation in a group of 1155 brain tumours. Slowly growing gliomas causing only epileptic fits and no other symptoms are especially difficult to diagnose. Of 21 personal observations of tumour seizures, in which the

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