Magnetic resonance image findings of primary intradural Ewing sarcoma of the cauda equina: case report and review of the literature

Primary Spinal Intradural Extraosseous Ewing Sarcoma in a Pediatric Patient: Case Report and Review of the Literature

“…This appearance is present in almost 100% of cases of ES and PNET [5]. The distinction between EES and other PNET is highly important and rests on histologic distinction (absence of Homer-Wright rosettes) and genetic confirmation [1, 7, 15, 16]. In our case, molecular diagnosis by FISH confirmed the fusion product.…”

“…Of the pediatric patients, 2 had exclusive involvement of the cervical spine, and 3 (including the present case) had lumbar spine and/or cauda equina involvement [9, 16, 20, 21]. Of all the cases reviewed, only 10 total adult and pediatric cases had involvement of the lumbar spine and/or cauda equina [4, 7, 9, 12-14, 16, 17, 19, 20, 22, 23]. …”

“…In this case, the working diagnosis based on the original images was myxopapillary ependymoma [7]. The hemorrhagic event, however, was considered unusual for this entity, and the gross findings were not consistent with a low-grade tumor.…”

“…Spinal column metastasis occurs in 3.5–7% of cases [3]. EES represents 16% of all cases; tumors have been reported in the paravertebral soft tissues, lower extremities, chest wall, and pelvis [1-7]. …”

Intradural extramedullary Ewing's sarcoma: A case report and review of the literature

“…This neoplasm is more common in males [3][4][5][6][7][8][9][10][11][12][13][14] during the 4th decade of life [1,11,15,16] and usually affects the thoracic and lumbar regions [3][4][5][6][7][9][10][11][12][13][15][16][17][18][19][20]; however, there are a few reports involving cervical spine [14,[21][22][23]. The symptomatology is similar with any other space-occupying lesion of the spinal cord [3][4][5][6][7][8][9][10][11][12][13][14][15][16]…”