title: Primary primitive neuroectodermal tumor (PNET) of the kidney with venous thrombus.
abstract: Primitive neuroectodermal tumors of the kidney are rare, the diagnosis usually being made at histopathology. A young adult presented with a painful left renal mass. CT Scan of the abdomen revealed a large necrotic tumor of the left kidney. At surgery the patient was found to have a venous thrombus confined to the renal vein. Radical nephrectomy was done. Histopathology showed a round cell neoplasm with typical Homer Wright rosette formation and positive staining for neuron specific enolase (NSE) and MIC-2 on immunohistochemistry. The patient is undergoing multidrug chemotherapy and is alive and well at a follow up of nine months.
authors.affiliation: Department of Urology, All India Institute of Medical Sciences, New Delhi 110 029, India.
authors.forename: B
authors.initials: B
authors.lastname: Sivaramakrishna
authors.forename: Om Prakash
authors.initials: OP
authors.lastname: Mundada
authors.forename: Monish
authors.initials: M
authors.lastname: Aron
authors.forename: Manju
authors.initials: M
authors.lastname: Aron
authors.forename: M
authors.initials: M
authors.lastname: Vijayaraghavan
mesh_terms: D000328:Adult; D001707:Biopsy, Needle; D017024:Chemotherapy, Adjuvant; D003131:Combined Modality Therapy; D005500:Follow-Up Studies; D006801:Humans; D007150:Immunohistochemistry; D007680:Kidney Neoplasms / Q000175:diagnosis / Q000473:pathology* / Q000628:therapy; D008297:Male; D009361:Neoplasm Invasiveness / Q000473:pathology*; D009367:Neoplasm Staging; D009392:Nephrectomy / Q000379:methods; D018241:Neuroectodermal Tumors, Primitive, Peripheral / Q000175:diagnosis / Q000473:pathology* / Q000628:therapy; D012082:Renal Veins; D018570:Risk Assessment; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D020246:Venous Thrombosis / Q000175:diagnosis / Q000473:pathology*