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Primary Spinal Intradural Extramedullary Ewing's Sarcoma/Peripheral Neuroectodermal Tumour Masquerading Clinically as
B K Praveen1, Saikat Das2, Manish Gupta2
1Department of Pathology and Lab Medicine, All India Institute of Medical Science Bhopal, Saket Nagar, Habib Ganj, Bhopal, Madya Pradesh, India.
Abstract:
Ewing's Sarcomas (ES)/Peripheral neuroectodermal tumour (pPNET) are heterogenous group of rare, highly malignant, undifferentiated primitive round-cell neoplasms of neuroectodermal origin. pPNETs are seldom observed to involve the spine of which Spinal Intradural Extramedullary Extraosseous Primary ES/pPNET are extremely rare. We report a case of a 23-year-old male with complaints of low backache and hip pain radiating to the left inguinal region for four months. Radiology findings were suggestive of a neurogenic tumour. Cytomorphology, histomorphology and immunohistochemistry evaluation were done. Diagnosis was consistent with ES/pPNET. Careful correlation between clinical history, cytomorphology, histopathology, immunohistochemical and molecular analysis can help to distinguish primary spinal ES/PNET from other primary spinal tumours and will help clinicians to start treatment at the earliest.

