PT  - JOURNAL ARTICLE
AU  - Pekala, J.S.
AU  - Gururangan, S.
AU  - Provenzale, J.M.
AU  - Mukundan, S.
TI  - Central Nervous System Extraosseous Ewing Sarcoma: Radiologic Manifestations of This Newly Defined Pathologic Entity
DP  - 2006 Mar 01
TA  - American Journal of Neuroradiology
PG  - 580--583
VI  - 27
IP  - 3
4099  - http://www.ajnr.org/content/27/3/580.short
4100  - http://www.ajnr.org/content/27/3/580.full
SO  - Am. J. Neuroradiol.2006 Mar 01; 27
AB  - Summary: Although these entities are histologically similar, recent advances in molecular genetics have allowed the distinction of central nervous system extraosseous Ewing sarcoma (CNS-EES) from central primitive neuroectodermal tumors (c-PNET) including medulloblastoma and supratentorial PNET. We present 2 cases of pathologically confirmed CNS-EES. Knowledge of CNS-EES as a distinct entity enables the neuroradiologist to suggest the proper diagnosis and the need for special immuno-histochemical and molecular studies to confirm the diagnosis. Because treatment and prognosis are vastly different, the proper diagnosis of CNS-EES versus c-PNET is critical.