Primitive neuroectodermal tumors of the brain in children
نویسندگان
چکیده
منابع مشابه
Supratentorial primitive neuroectodermal tumors in young children.
TO THE EDITOR: In the April issue of the Journal of Clinical Oncology, Timmermann et al suggest that radiotherapy plays a major role in the treatment of young children with supratentorial primitive neuroectodermal tumors (stPNET) and conclude that a delay in irradiation may compromise survival. Although stPNET are undoubtedly aggressive brain tumors and results of treatments are still disappoin...
متن کاملRadiologic characteristics of primitive neuroectodermal tumors in children.
Radiographic findings are reviewed in 31 children with primitive neural ectodermal tumors seen at the Hospital for Sick Children from 1962 through 1983. Seventeen children were initially evaluated with computed tomography (CT). Ten of these had both CT studies and angiography. The tumors were large, irregular, typically iso- to hyperdense, and showed dense, heterogeneous contrast enhancement. C...
متن کاملPediatric Orbital Primitive Neuroectodermal Tumors.
PURPOSE To present the clinical, radiological, histopathological, immunohistochemical features and the follow-up of orbital primitive neuroectodermal tumors (PNETs) in pediatric patients along with a review of the literature. METHODS A retrospective analysis of all diagnosed cases of orbital PNET was done. Patients' ophthalmic findings, imaging, immunohistochemistry, metastatic work-up, treat...
متن کاملPeripheral Primitive Neuroectodermal Tumor of the Pelvis
The primitive neuroectodermal tumor (PNET) belongs to a group of highly malignant tumors and is composed of small round cells of a neuroectodermal origin. Categorized in the same tumor family as Ewing sarcoma, the PNET is most likely to occur in bones and soft tissues. However, a small number of PNET cases arising in the pelvis have been reported as well. We present three cases of pelvic PNET: ...
متن کاملPrimitive Neuroectodermal Tumor of the Kidney
Primitive neuroectodermal tumor (PENETs) is an uncommon malignancy of bone and soft tissue witch rarely occurs in the kidney. In more than 90% of the cases, the tumor cells relieves a balanced translocation (11; 22) (q24; q12). Immunohistochemical staining may be required for diagnosis of PENET. The cells of tumor express CD99, vimentin, NSE, FL1 but do not express Ck, LCA, myogenin, and WT1. W...
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ژورنال
عنوان ژورنال: Cancer
سال: 1973
ISSN: 0008-543X,1097-0142
DOI: 10.1002/1097-0142(197310)32:4<890::aid-cncr2820320421>3.0.co;2-o