OBJECTIVE To report two new cases of Ewing's sarcoma/primitive neuroectodermal tumor of the kidney, one of them with tumor thrombus in cava. METHOD Characterization of two new cases and literature review by PubMed search. RESULTS We report the cases of two men diagnosed with primary renal Ewing's sarcoma, who have been treated with nephrectomy and adjuvant chemotherapy, being in complete ...

A 54-year-old woman presented with intractable perianal, bilateral buttock, and radiating thigh/calf pain. An MRI scan showed an intradural, contrast-enhancing, ovoid mass in the cauda equina region at L1-L2. At laminectomy, the ovoid mass arose from a nerve root and, intact, was gross totally resected. Histologically, the dominant pattern was that of schwannoma. One year thereafter, the sympto...

Expression of insulin-like growth factor I (IGF-I) mRNA by some tumor cell lines of neuroectodermal origin has been described. To further explore the significance of IGF-I mRNA expression in these tumors, a more extensive analysis was performed. Most (9 of 10) neuroectodermal tumor cell lines with a t(11;22) translocation (primitive neuroectodermal tumor IPNETI, Ewing's sarcoma, esthesioneurobl...

RATIONALE Primary spinal primitive neuroectodermal tumors (PNETs) are highly malignant tumors, which are extremely rare entities and primary intramedullary PNETs are extremely rare. Till now, only 24 cases of primary intramedullary PNET have been reported. PATIENT CONCERNS A 26-year-old male presented with progressive low back and lower limb pain for 1 month. DIAGNOSES Based on MRI and hist...

BACKGROUND Primary renal primitive neuroectodermal tumor/extraskeletal Ewing's sarcoma (PNET/EES) is a very rare renal tumor. CASE REPORT We report a case of primary renal PNET/EES of the kidney in an adult patient and describe its computed tomography and magnetic resonance imaging findings, including diffusion weighted images along with a review of the current medical literature. CONCLUSIO...

Abstract Objective The relationship between the adolescent and young adult age groups poor overall survival in soft tissue sarcoma risk factors for outcomes patients with were analyzed. Methods medical records of 7759 Japanese diagnosed from 2006–13 accessed Bone Soft Tissue Tumor registry. epidemiological features compared those other groups. cancer rates calculated using Kaplan-Meier method. ...