neuroectodermal tumors/edema

The main aim of this research was to demonstrate that the cortical and subcortical grey matter hypometabolism as revealed by fluorine-18 fluorodesoxyglucose-positron emission tomography ((18)F-FDG-PET) imaging in brain tumors is related to associated edema as demonstrated by magnetic resonance

Supratentorial primitive neuroectodermal tumors (PNETs) are rare tumors that carry a poorer prognosis than those arising from the infratentorial compartment (such as medulloblastoma). The overall prognosis for these patients depends on several factors including the extent of resection, age at

OBJECTIVE Preoperative differentiation of primitive neuroectodermal tumors (PNETs) from other tumors is important for presurgical staging, intraoperative management, and postoperative treatment. Dynamic, susceptibility-weighted, contrast-enhanced MR imaging can provide in vivo assessment of the

The concept of primitive neuroectodermal tumors (PNETs) has been controversial since its introduction in 1973. Understanding these tumors is important for the neuroradiologist, because certain radiological features may suggest their diagnosis. A review of the PNET concept, as well as the different

The MRI appearances of 7 adult patients with pathologically proven intracranial primitive neuroectodermal tumors (PNET) were retrospectively analyzed. The MRI features were compared with findings in pathology and surgery. In this group, the tumor masses were most commonly found in the semisphere of

Ewing's sarcoma/primitive neuroectodermal tumor (ES/PNET) of bone is a rare childhood tumor most commonly located in the metadiaphysis. In skeletally immature patients, lesions of the epiphysis are rarely malignant, with the most common diagnosis being chondroblastoma. This article presents a case

One hundred ninety-eight children were entered on POG 8633, "Prolonged Postoperative Chemotherapy and Delayed Radiation for Children <3 years of age with Malignant Brain Tumors" (1986-1990). Thirteen manifested supratentorial nonpineoblastoma primitive neuroectodermal tumors, making this the second

BACKGROUND Ependymoblastoma (EBL), ependymoma (EP), and primitive neuroectodermal tumors of the central nervous system not otherwise specified (CNS-PNET NOS) are pediatric brain tumors that can be differentiated by histopathology in the clinical setting. Recently, we described specific MRI features

Primitive neuroectodermal tumor (PNET) is a rare, high-grade malignant tumor that most commonly occurs in the peripheral nervous system, bone, and deep soft tissues. It is extremely rare in the pericardium. To the best of our knowledge, only two patients with primary PNET of the pericardium have

Malignant peripheral nerve sheath tumors (MPNSTs) are rare neuroectodermal tumors resulting from the malignant transformation of benign plexiform neurofibromas. The sporadic form of these tumors is rare than familial variants (seen in neurofibromatosis Type 1) and making the diagnosis difficult. We

A 20 years old man with peripheral primitive neuroectodermal tumor involving the bone marrow received 12 Gy fractionated total body irradiation, 140 mg/m2 melphalan, 1800 mg/m2 etoposide, and 1500 mg/m2 carboplatin for consolidation of first remission. Thereafter, 250 micrograms/m2/day recombinant

OBJECTIVE A phase I trial of docetaxel was performed to determine the maximum-tolerated dose (MTD), the dose-limiting toxicities, and the incidence and severity of other toxicities in children with refractory solid tumors. METHODS Forty-four children received 103 courses of docetaxel administered as

Fifty histologically identified primary brain tumors in the dog were analyzed by computed tomography to establish criteria for identifying tumor types by computed tomography characteristics. Meningiomas could be distinguished from tumors within the brain parenchyma because they usually were