نتایج جستجو برای: neuroectodermal tumors
تعداد نتایج: 179658 فیلتر نتایج به سال:
We report a case of diffuse enhancement of the cerebrospinal fluid (CSF) after intravenous administration of gadopentetate dimeglumine in an 8-year-old girl with a primitive neuroectodermal tumor. The enhancement of the CSF was caused by leakage of gadolinium chelate complexes into the CSF, which was proved by CSF analysis.
Background: Ewing sarcoma family tumors (ESFTs) are among the most malignant tumors in children and young adults. ESFTs include Ewing sarcoma (ES) and peripheral primitive neuroectodermal tumors (pPNETs). As there seemed to be few studies on the molecular biology of ESFTs, we investigated the frequency of CD99, Ki67, p53 and Fli- 1 protein expression in 15 Iranian patients with ESFTs. In addi...
A rare case of peripheral primitive neuroectodermal tumor (PNET) is reported. A 68-year-old woman complaining of lumbago was admitted to our hospital. Diagnosis was made based on pathological findings characterized by Homer Wright-type rosettes. Ultrastructural examination showed the presence of neurosecretory granules and short cytoplasmic processes, which were highly suggestive of neural diff...
Primitive neuroectodermal tumors (PNETs) are easily detected, and the diagnosis made by neuroradiologic imaging. Leptomeningeal seeding is a common complication and carries a poor prognosis. Primary leptomeningeal PNETs are rarer and difficult to diagnose on magnetic resonance imaging (MRI) or cerebrospinal fluid (CSF) studies. We encountered a rare case of primary leptomeningeal primitive neur...
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