1. Presented by William Westra, M.D. and prepared by Walter Klein, M.D.

27 year-old man with a posterior neck mass.

images/klein/040504case3fig1.jpg
images/klein/040504case3fig2.jpg
images/klein/040504case3fig3.jpg
images/klein/040504case3fig4.jpg
images/klein/040504case3fig5.jpg