cases, mediastinum Week 159: Case 2 April 26, 2023 pathadmin 1. Presented by Fred Askin, M.D. and prepared by Sharon Swierczynski, M.D., Ph.D.The patient is a 3 month-old baby boy with a large left posterior mediastinal mass./images/102003case2fig1.jpg/images/102003case2fig2.jpg/images/102003case2fig3.jpg/images/102003case2fig4.jpgPrimitive neuroectodermal tumor (PNET)NeuroblastomaLymphoblastic lymphomaEmbryonal rhabdomyosarcoma Loading...