case_images: PMC2408707_01
case_images: CT scan showing a
  contrast-enhanced lesion with central sunburst pattern and calcifications black
  asterisk (upper (axial view), lower (sagittal view)) was noted in the para-nasal
  and cheek soft-tissues. It extended medially into the surrounding nasal bone
  structures and posteriorly into the left maxillary sinus and nasal fossa. It
  extended superiorly to palatine prosthesis black square. Insert on Figure 1(a)
  shows conformational radiotherapy plan (according to Euro-Ewing 99
  recommendations). Initial tumor volume was treated with a 2 cm margin and included
  posttherapeutic scar tissue area white asterisk.
case_images: SRCM2008-854141.001.jpg
case_images: PMC2408707_01_SRCM2008-854141.001.jpg
case_images: fig1
case_images: On computerized tomography (CT) scan, a 19-mL contrast-enhanced lesion with central sunburst pattern and calcifications (Figure 1) was noted in the para-nasal and cheek soft-tissues.
case_images: (Histological examination) HES x 600
  small-round-blue-cell arrow head tumor with highly cellular areas. Insert (gross
  examination) showed a pseudoencapsulated fleshy tumor mass.
case_images: SRCM2008-854141.002.jpg
case_images: PMC2408707_01_SRCM2008-854141.002.jpg
case_images: fig2
case_images: Grossly, the lesion appeared as a purple matter with areas of hemorrhage and necrosis (Figure 2).