Date of Presentation:1/6/16

Attending pathologist: Ming Jin, M.D., Ph.D.

Presented by: Erik de Vries, M.D.

Prepared by: Keluo Yao, M.D.



This is a male in his 40s who developed progressive shortness of breath. He has a right chest mass has been enlarging in the last few months. AFP is elevated. His history is significant for a testicular mass that was not treated. A fine needle aspiration biopsy of the chest mass was performed.

This mass is most likely to be?

  1. Adenocarcinoma
  2. Squamous cell carcinoma
  3. Metastatic Yolk sac tumor
  4. Metastatic embryonal carcinoma
Metastatic Yolk sac tumor