cases, retroperitoneum Week 387: Case 5 April 26, 2023 pathadmin 1. Presented by Hind Nassar, M.D.. and prepared by ChanJuan Shi, M.D., Ph.D.33 year old male with a partially cystic mass in the retropharyngeal areaimages/nassar033009-5a.jpgimages/nassar033009-5b.jpgimages/nassar033009-5c.jpgimages/nassar033009-5d.jpgimages/nassar033009-5e.jpgSynovial sarcomaMPNSTSarcomatoid carcinomaMalignant melanoma Loading...