نتایج جستجو برای: neuroectodermal tumor ppnet
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BACKGROUND Ewing's sarcoma and primitive neuroectodermal tumor of bone are closely related, highly malignant tumors of children, adolescents, and young adults. A new drug combination, ifosfamide and etoposide, was highly effective in patients with Ewing's sarcoma or primitive neuroectodermal tumor of bone who had a relapse after standard therapy. We designed a study to test whether the addition...
•Primitive neuroectodermal tumor of the uterus is extremely rare.•Diagnosis requires timely evaluation with molecular analysis.•Different combinations of adjuvant chemotherapy have been reported.
We present a case of an exophytic spinal primitive neuroectodermal tumor that, radiologically, simulated an extramedullary nerve sheath tumor, meningioma, or metastatic tumor deposit. MR imaging provided discrete anatomic localization of the tumor, enabling exclusion of multicentricity in the brain and spinal cord.
UNLABELLED 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 ...
Olfactory neuroblastoma is a rare neuroectodermal malignant tumor. It was first described by Berger et al in 1924, I and about 250 cases have since been reported, none of them in the perinatal period. The tumor emerges from the olfactory membrane located in the sinonasal area and anterior cranial fossa. It has a broad histologic spectrum and can be confused with peripheral neuroectodermal tumor...
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