A case of Ewing-like sarcoma showing trilaminar differentiation after treatment

• Main Authors: Mia C. Weiss (Author), Marta Batus (Author), Rahul B. Jadhav (Author), Manuel Utset (Author), Cristina O'Donoghue (Author), Ira Miller (Author)
• Format: Book
• Published: Elsevier, 2020-03-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Here we present a case of a 56 year old male with an Ewing-like bilateral retroperitoneal sarcoma with evidence of a EWSR1-POU5F1 fusion gene. Biopsy showed a high grade round cell sarcoma expressing strong membranous CD99 antigen. The tumor shrank considerably after extensive neoadjuvant chemo-radi...