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CASE REPORT
Year : 2015  |  Volume : 7  |  Issue : 2  |  Page : 236-239

Primitive neuroectodermal tumor of the kidney in a young male: Case report and review of literature


1 Department of Pathology, University College of Medical Sciences and Guru Teg Bahadur Hospital, New Delhi, India
2 Department of Surgery, University College of Medical Sciences and Guru Teg Bahadur Hospital, New Delhi, India

Correspondence Address:
Dr. Nivedita Patnaik
Department of Pathology, University College of Medical Sciences & Guru Teg Bahadur Hospital, Delhi
India
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DOI: 10.4103/0974-7796.150537

PMID: 25836041

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Primitive neuroectodermal tumor of the kidney is a rare tumor. A total of approximately 79 primary renal cases have been reported to date. Primitive neuroectodermal tumors occur preferentially in the soft-tissues of the paravertebral region and chest wall, less frequently in extremities, with a slight male predominance. We report a case of primitive neuroectodermal tumor of the kidney in a 17-year-old male with a pre-operative diagnosis of renal cell carcinoma-stage 4. The patient underwent radical nephrectomy and histopathological examination revealed a highly aggressive tumor of monotonous sheets of round cells with focal areas of rosette formations and high mitotic rate with Ki67 index of 25-30%. Tumor cells were positive for CD 99 confirming the diagnosis of primitive neuroectodermal tumor. Primitive neuroectodermal tumor of the kidney needs to be kept in mind as a differential diagnosis in young adults presenting with a large kidney mass.


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