Objective To investigate the clinicopathological feature, immunological phenotype, therapy and prognosis of primary renal primitive neuroectodermal tumor (primitive neuroectodermal tumor, PNET). Method To report diagnose and treat condition of a child with renal PNET and review relevant literature. Result The male patient aged 13 years old. Color-ultrasound found 3.5 cm × 3.0cm mass of left kid...

The translocation t(11;22) is a common chromosomal abnormality detected both in Ewing’s sarcoma and in primitive neuroectodermal tumor cells. The translocation results in an EWS-Fli1 fusion gene, made up of the 5 9 half of the EWS gene on chromosome 22 fused to the 3 9 half of the Fli1 gene on chromosome 11. Recent studies have evaluated possible roles of the fusion gene products. However, the ...

The HNK-1 antibody known to define a subpopulation of human lymphocytes with natural killer and killer cell activities was shown to detect a common neuroectodermal antigen. Most tumor lines and paraffin-embedded tumors and normal tissues of neuroectodermal origin were specifically stained by HNK-1. Lines and tissues of other derivations were negative except a trophoblastic tumor line and a perc...

INTRODUCTION Primitive neuroectodermal tumors (PNETs) occur predominantly in childhood preferentially in the soft tissues of the lower extremity and the paraspinal region. We present here a rare case of a PNET of the kidney in an adult. CASE PRESENTATION A tumor adjacent to the right kidney was detected by ultrasound coincidentally at a routine check-up in a 46-year-old woman with irritable b...

Renal primitive neuroectodermal tumor (renal PNET) or renal Ewing sarcoma ES) is a rare, rapidly growing malignant small round cell with poor prognosis. A 32-years-old Bangladeshi male patient presented right loin pain, fever and anemia. On CT imaging large (18x10.5x10.0 cm) mass was discovered. suspicion of malignancy, biopsy taken from the mass. Microscopic evaluation showed features consiste...

RATIONALE Peripheral primitive neuroectodermal tumor (PNET) is a kind of small round cell tumor derived from primitive neuroectodermal tumor. PATIENT CONCERNS PNET is a highly malignant tumor that is subordinated to Ewing sarcoma. It occurs predominantly in soft tissue and bone and rarely in the bronchi and lung. Traditional surgery, radiotherapy, and chemotherapy are used for the treatment o...

2. Zanetti G, Nobre LF, Mançano AD, et al. Nodular reversed halo sign caused by pulmonary tuberculosis, confirmed by sputum culture. Radiol Bras. 2013;46(6):ix–x. 3. Amoedo MK, Souza LVS, Souza AS, et al. Pulmonary interstitial emphysema: a case report and review of the literature. Radiol Bras. 2013;46: 317–9. 4. Koenigkam Santos M, Barreto ARF, Chagas Neto FA, et al. Neuroendocrine tumors of t...

Five pathologically proved melanotic neuroectodermal tumors of infancy are reported. These rare neoplasms of infancy exhibit a distinct predilection for the maxillary bone. Three tumors originated in the maxilla, one in the calvaria, and one in the cerebellar vermis. Those occurring in bone did not metastasize but were locally invasive, as reflected in their radiologic appearance. Bone erosion,...